///*
// * Copyright (C) 2006 The Android Open Source Project
// *
// * Licensed under the Apache License, Version 2.0 (the "License");
// * you may not use this file except in compliance with the License.
// * You may obtain a copy of the License at
// *
// *      http://www.apache.org/licenses/LICENSE-2.0
// *
// * Unless required by applicable law or agreed to in writing, software
// * distributed under the License is distributed on an "AS IS" BASIS,
// * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// * See the License for the specific language governing permissions and
// * limitations under the License.
// */
//
//package android.view;
//
//import android.Manifest;
//import android.animation.LayoutTransition;
//import android.app.ActivityManagerNative;
//import android.content.ClipDescription;
//import android.content.ComponentCallbacks;
//import android.content.Context;
//import android.content.pm.PackageManager;
//import android.content.res.CompatibilityInfo;
//import android.content.res.Configuration;
//import android.content.res.Resources;
//import android.graphics.Canvas;
//import android.graphics.Matrix;
//import android.graphics.Paint;
//import android.graphics.PixelFormat;
//import android.graphics.Point;
//import android.graphics.PointF;
//import android.graphics.PorterDuff;
//import android.graphics.Rect;
//import android.graphics.Region;
//import android.graphics.drawable.Drawable;
//import android.hardware.display.DisplayManager;
//import android.hardware.display.DisplayManager.DisplayListener;
//import android.media.AudioManager;
//import android.os.Binder;
//import android.os.Build;
//import android.os.Bundle;
//import android.os.Debug;
//import android.os.Handler;
//import android.os.Looper;
//import android.os.Message;
//import android.os.ParcelFileDescriptor;
//import android.os.Process;
//import android.os.RemoteException;
//import android.os.SystemClock;
//import android.os.SystemProperties;
//import android.os.Trace;
//import android.util.AndroidRuntimeException;
//import android.util.DisplayMetrics;
//import android.util.Log;
//import android.util.Slog;
//import android.util.TimeUtils;
//import android.util.TypedValue;
//import android.view.Surface.OutOfResourcesException;
//import android.view.View.AttachInfo;
//import android.view.View.MeasureSpec;
//import android.view.accessibility.AccessibilityEvent;
//import android.view.accessibility.AccessibilityManager;
//import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener;
//import android.view.accessibility.AccessibilityManager.HighTextContrastChangeListener;
//import android.view.accessibility.AccessibilityNodeInfo;
//import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
//import android.view.accessibility.AccessibilityNodeProvider;
//import android.view.accessibility.IAccessibilityInteractionConnection;
//import android.view.accessibility.IAccessibilityInteractionConnectionCallback;
//import android.view.animation.AccelerateDecelerateInterpolator;
//import android.view.animation.Interpolator;
//import android.view.inputmethod.InputConnection;
//import android.view.inputmethod.InputMethodManager;
//import android.widget.Scroller;
//
//import com.android.internal.R;
//import com.android.internal.os.SomeArgs;
//import com.android.internal.policy.PhoneFallbackEventHandler;
//import com.android.internal.view.BaseSurfaceHolder;
//import com.android.internal.view.RootViewSurfaceTaker;
//
//import java.io.FileDescriptor;
//import java.io.IOException;
//import java.io.OutputStream;
//import java.io.PrintWriter;
//import java.lang.ref.WeakReference;
//import java.util.ArrayList;
//import java.util.HashSet;
//
///**
// * The top of a view hierarchy, implementing the needed protocol between View
// * and the WindowManager.  This is for the most part an internal implementation
// * detail of {@link WindowManagerGlobal}.
// *
// * {@hide}
// */
//@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"})
//public final class ViewRootImpl implements ViewParent,
//        View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks {
//    private static final String TAG = "ViewRootImpl";
//    private static final boolean DBG = false;
//    private static final boolean LOCAL_LOGV = false;
//    /** @noinspection PointlessBooleanExpression*/
//    private static final boolean DEBUG_DRAW = false || LOCAL_LOGV;
//    private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV;
//    private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV;
//    private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV;
//    private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV;
//    private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV;
//    private static final boolean DEBUG_IMF = false || LOCAL_LOGV;
//    private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV;
//    private static final boolean DEBUG_FPS = false;
//    private static final boolean DEBUG_INPUT_STAGES = false || LOCAL_LOGV;
//
//    /**
//     * Set this system property to true to force the view hierarchy to render
//     * at 60 Hz. This can be used to measure the potential framerate.
//     */
//    private static final String PROPERTY_PROFILE_RENDERING = "viewroot.profile_rendering";
//
//    // properties used by emulator to determine display shape
//    public static final String PROPERTY_EMULATOR_WIN_OUTSET_BOTTOM_PX =
//            "ro.emu.win_outset_bottom_px";
//
//    /**
//     * Maximum time we allow the user to roll the trackball enough to generate
//     * a key event, before resetting the counters.
//     */
//    static final int MAX_TRACKBALL_DELAY = 250;
//
//    static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>();
//
//    static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>();
//    static boolean sFirstDrawComplete = false;
//
//    static final ArrayList<ComponentCallbacks> sConfigCallbacks
//            = new ArrayList<ComponentCallbacks>();
//
//    final Context mContext;
//    final IWindowSession mWindowSession;
//    final Display mDisplay;
//    final DisplayManager mDisplayManager;
//    final String mBasePackageName;
//
//    final int[] mTmpLocation = new int[2];
//
//    final TypedValue mTmpValue = new TypedValue();
//
//    final Thread mThread;
//
//    final WindowLeaked mLocation;
//
//    final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams();
//
//    final W mWindow;
//
//    final int mTargetSdkVersion;
//
//    int mSeq;
//
//    View mView;
//
//    View mAccessibilityFocusedHost;
//    AccessibilityNodeInfo mAccessibilityFocusedVirtualView;
//
//    int mViewVisibility;
//    boolean mAppVisible = true;
//    int mOrigWindowType = -1;
//
//    // Set to true if the owner of this window is in the stopped state,
//    // so the window should no longer be active.
//    boolean mStopped = false;
//
//    // Set to true to stop input during an Activity Transition.
//    boolean mPausedForTransition = false;
//
//    boolean mLastInCompatMode = false;
//
//    SurfaceHolder.Callback2 mSurfaceHolderCallback;
//    BaseSurfaceHolder mSurfaceHolder;
//    boolean mIsCreating;
//    boolean mDrawingAllowed;
//
//    final Region mTransparentRegion;
//    final Region mPreviousTransparentRegion;
//
//    int mWidth;
//    int mHeight;
//    Rect mDirty;
//    boolean mIsAnimating;
//
//    CompatibilityInfo.Translator mTranslator;
//
//    final View.AttachInfo mAttachInfo;
//    InputChannel mInputChannel;
//    InputQueue.Callback mInputQueueCallback;
//    InputQueue mInputQueue;
//    FallbackEventHandler mFallbackEventHandler;
//    Choreographer mChoreographer;
//
//    final Rect mTempRect; // used in the transaction to not thrash the heap.
//    final Rect mVisRect; // used to retrieve visible rect of focused view.
//
//    boolean mTraversalScheduled;
//    int mTraversalBarrier;
//    boolean mWillDrawSoon;
//    /** Set to true while in performTraversals for detecting when die(true) is called from internal
//     * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */
//    boolean mIsInTraversal;
//    boolean mApplyInsetsRequested;
//    boolean mLayoutRequested;
//    boolean mFirst;
//    boolean mReportNextDraw;
//    boolean mFullRedrawNeeded;
//    boolean mNewSurfaceNeeded;
//    boolean mHasHadWindowFocus;
//    boolean mLastWasImTarget;
//    boolean mWindowsAnimating;
//    boolean mDrawDuringWindowsAnimating;
//
//    /** How many frames the app is still allowed to draw when a window animation is happening. */
//    private int mRemainingFrameCount;
//    boolean mIsDrawing;
//    int mLastSystemUiVisibility;
//    int mClientWindowLayoutFlags;
//    boolean mLastOverscanRequested;
//
//    // Pool of queued input events.
//    private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10;
//    private QueuedInputEvent mQueuedInputEventPool;
//    private int mQueuedInputEventPoolSize;
//
//    /* Input event queue.
//     * Pending input events are input events waiting to be delivered to the input stages
//     * and handled by the application.
//     */
//    QueuedInputEvent mPendingInputEventHead;
//    QueuedInputEvent mPendingInputEventTail;
//    int mPendingInputEventCount;
//    boolean mProcessInputEventsScheduled;
//    boolean mUnbufferedInputDispatch;
//    String mPendingInputEventQueueLengthCounterName = "pq";
//
//    InputStage mFirstInputStage;
//    InputStage mFirstPostImeInputStage;
//    InputStage mSyntheticInputStage;
//
//    boolean mWindowAttributesChanged = false;
//    int mWindowAttributesChangesFlag = 0;
//
//    // These can be accessed by any thread, must be protected with a lock.
//    // Surface can never be reassigned or cleared (use Surface.clear()).
//    final Surface mSurface = new Surface();
//
//    boolean mAdded;
//    boolean mAddedTouchMode;
//
//    final DisplayAdjustments mDisplayAdjustments;
//
//    // These are accessed by multiple threads.
//    final Rect mWinFrame; // frame given by window manager.
//
//    final Rect mPendingOverscanInsets = new Rect();
//    final Rect mPendingVisibleInsets = new Rect();
//    final Rect mPendingStableInsets = new Rect();
//    final Rect mPendingContentInsets = new Rect();
//    final Rect mPendingOutsets = new Rect();
//    final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets
//            = new ViewTreeObserver.InternalInsetsInfo();
//
//    final Rect mDispatchContentInsets = new Rect();
//    final Rect mDispatchStableInsets = new Rect();
//
//    private WindowInsets mLastWindowInsets;
//
//    final Configuration mLastConfiguration = new Configuration();
//    final Configuration mPendingConfiguration = new Configuration();
//
//    boolean mScrollMayChange;
//    int mSoftInputMode;
//    WeakReference<View> mLastScrolledFocus;
//    int mScrollY;
//    int mCurScrollY;
//    Scroller mScroller;
//    HardwareLayer mResizeBuffer;
//    long mResizeBufferStartTime;
//    int mResizeBufferDuration;
//    // Used to block the creation of the ResizeBuffer due to invalidations in
//    // the previous DisplayList tree that must prevent re-execution.
//    // Currently this means a functor was detached.
//    boolean mBlockResizeBuffer;
//    static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator();
//    private ArrayList<LayoutTransition> mPendingTransitions;
//
//    final ViewConfiguration mViewConfiguration;
//
//    /* Drag/drop */
//    ClipDescription mDragDescription;
//    View mCurrentDragView;
//    volatile Object mLocalDragState;
//    final PointF mDragPoint = new PointF();
//    final PointF mLastTouchPoint = new PointF();
//
//    private boolean mProfileRendering;
//    private Choreographer.FrameCallback mRenderProfiler;
//    private boolean mRenderProfilingEnabled;
//
//    // Variables to track frames per second, enabled via DEBUG_FPS flag
//    private long mFpsStartTime = -1;
//    private long mFpsPrevTime = -1;
//    private int mFpsNumFrames;
//
//    /**
//     * see {@link #playSoundEffect(int)}
//     */
//    AudioManager mAudioManager;
//
//    final AccessibilityManager mAccessibilityManager;
//
//    AccessibilityInteractionController mAccessibilityInteractionController;
//
//    AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager;
//    HighContrastTextManager mHighContrastTextManager;
//
//    SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent;
//
//    HashSet<View> mTempHashSet;
//
//    private final int mDensity;
//    private final int mNoncompatDensity;
//
//    private boolean mInLayout = false;
//    ArrayList<View> mLayoutRequesters = new ArrayList<View>();
//    boolean mHandlingLayoutInLayoutRequest = false;
//
//    private int mViewLayoutDirectionInitial;
//
//    /** Set to true once doDie() has been called. */
//    private boolean mRemoved;
//
//    /**
//     * Consistency verifier for debugging purposes.
//     */
//    protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier =
//            InputEventConsistencyVerifier.isInstrumentationEnabled() ?
//                    new InputEventConsistencyVerifier(this, 0) : null;
//
//    static final class SystemUiVisibilityInfo {
//        int seq;
//        int globalVisibility;
//        int localValue;
//        int localChanges;
//    }
//
//    public ViewRootImpl(Context context, Display display) {
//        mContext = context;
//        mWindowSession = WindowManagerGlobal.getWindowSession();
//        mDisplay = display;
//        mBasePackageName = context.getBasePackageName();
//
//        mDisplayAdjustments = display.getDisplayAdjustments();
//
//        mThread = Thread.currentThread();
//        mLocation = new WindowLeaked(null);
//        mLocation.fillInStackTrace();
//        mWidth = -1;
//        mHeight = -1;
//        mDirty = new Rect();
//        mTempRect = new Rect();
//        mVisRect = new Rect();
//        mWinFrame = new Rect();
//        mWindow = new W(this);
//        mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion;
//        mViewVisibility = View.GONE;
//        mTransparentRegion = new Region();
//        mPreviousTransparentRegion = new Region();
//        mFirst = true; // true for the first time the view is added
//        mAdded = false;
//        mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this);
//        mAccessibilityManager = AccessibilityManager.getInstance(context);
//        mAccessibilityInteractionConnectionManager =
//            new AccessibilityInteractionConnectionManager();
//        mAccessibilityManager.addAccessibilityStateChangeListener(
//                mAccessibilityInteractionConnectionManager);
//        mHighContrastTextManager = new HighContrastTextManager();
//        mAccessibilityManager.addHighTextContrastStateChangeListener(
//                mHighContrastTextManager);
//        mViewConfiguration = ViewConfiguration.get(context);
//        mDensity = context.getResources().getDisplayMetrics().densityDpi;
//        mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi;
//        mFallbackEventHandler = new PhoneFallbackEventHandler(context);
//        mChoreographer = Choreographer.getInstance();
//        mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE);
//        loadSystemProperties();
//    }
//
//    public static void addFirstDrawHandler(Runnable callback) {
//        synchronized (sFirstDrawHandlers) {
//            if (!sFirstDrawComplete) {
//                sFirstDrawHandlers.add(callback);
//            }
//        }
//    }
//
//    public static void addConfigCallback(ComponentCallbacks callback) {
//        synchronized (sConfigCallbacks) {
//            sConfigCallbacks.add(callback);
//        }
//    }
//
//    // FIXME for perf testing only
//    private boolean mProfile = false;
//
//    /**
//     * Call this to profile the next traversal call.
//     * FIXME for perf testing only. Remove eventually
//     */
//    public void profile() {
//        mProfile = true;
//    }
//
//    /**
//     * Indicates whether we are in touch mode. Calling this method triggers an IPC
//     * call and should be avoided whenever possible.
//     *
//     * @return True, if the device is in touch mode, false otherwise.
//     *
//     * @hide
//     */
//    static boolean isInTouchMode() {
//        IWindowSession windowSession = WindowManagerGlobal.peekWindowSession();
//        if (windowSession != null) {
//            try {
//                return windowSession.getInTouchMode();
//            } catch (RemoteException e) {
//            }
//        }
//        return false;
//    }
//
//    /**
//     * We have one child
//     */
//    public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) {
//        synchronized (this) {
//            if (mView == null) {
//                mView = view;
//
//                mAttachInfo.mDisplayState = mDisplay.getState();
//                mDisplayManager.registerDisplayListener(mDisplayListener, mHandler);
//
//                mViewLayoutDirectionInitial = mView.getRawLayoutDirection();
//                mFallbackEventHandler.setView(view);
//                mWindowAttributes.copyFrom(attrs);
//                if (mWindowAttributes.packageName == null) {
//                    mWindowAttributes.packageName = mBasePackageName;
//                }
//                attrs = mWindowAttributes;
//                // Keep track of the actual window flags supplied by the client.
//                mClientWindowLayoutFlags = attrs.flags;
//
//                setAccessibilityFocus(null, null);
//
//                if (view instanceof RootViewSurfaceTaker) {
//                    mSurfaceHolderCallback =
//                            ((RootViewSurfaceTaker)view).willYouTakeTheSurface();
//                    if (mSurfaceHolderCallback != null) {
//                        mSurfaceHolder = new TakenSurfaceHolder();
//                        mSurfaceHolder.setFormat(PixelFormat.UNKNOWN);
//                    }
//                }
//
//                // Compute surface insets required to draw at specified Z value.
//                // TODO: Use real shadow insets for a constant max Z.
//                if (!attrs.hasManualSurfaceInsets) {
//                    final int surfaceInset = (int) Math.ceil(view.getZ() * 2);
//                    attrs.surfaceInsets.set(surfaceInset, surfaceInset, surfaceInset, surfaceInset);
//                }
//
//                CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo();
//                mTranslator = compatibilityInfo.getTranslator();
//
//                // If the application owns the surface, don't enable hardware acceleration
//                if (mSurfaceHolder == null) {
//                    enableHardwareAcceleration(attrs);
//                }
//
//                boolean restore = false;
//                if (mTranslator != null) {
//                    mSurface.setCompatibilityTranslator(mTranslator);
//                    restore = true;
//                    attrs.backup();
//                    mTranslator.translateWindowLayout(attrs);
//                }
//                if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs);
//
//                if (!compatibilityInfo.supportsScreen()) {
//                    attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
//                    mLastInCompatMode = true;
//                }
//
//                mSoftInputMode = attrs.softInputMode;
//                mWindowAttributesChanged = true;
//                mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED;
//                mAttachInfo.mRootView = view;
//                mAttachInfo.mScalingRequired = mTranslator != null;
//                mAttachInfo.mApplicationScale =
//                        mTranslator == null ? 1.0f : mTranslator.applicationScale;
//                if (panelParentView != null) {
//                    mAttachInfo.mPanelParentWindowToken
//                            = panelParentView.getApplicationWindowToken();
//                }
//                mAdded = true;
//                int res; /* = WindowManagerImpl.ADD_OKAY; */
//
//                // Schedule the first layout -before- adding to the window
//                // manager, to make sure we do the relayout before receiving
//                // any other events from the system.
//                requestLayout();
//                if ((mWindowAttributes.inputFeatures
//                        & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) {
//                    mInputChannel = new InputChannel();
//                }
//                try {
//                    mOrigWindowType = mWindowAttributes.type;
//                    mAttachInfo.mRecomputeGlobalAttributes = true;
//                    collectViewAttributes();
//                    res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes,
//                            getHostVisibility(), mDisplay.getDisplayId(),
//                            mAttachInfo.mContentInsets, mAttachInfo.mStableInsets,
//                            mAttachInfo.mOutsets, mInputChannel);
//                } catch (RemoteException e) {
//                    mAdded = false;
//                    mView = null;
//                    mAttachInfo.mRootView = null;
//                    mInputChannel = null;
//                    mFallbackEventHandler.setView(null);
//                    unscheduleTraversals();
//                    setAccessibilityFocus(null, null);
//                    throw new RuntimeException("Adding window failed", e);
//                } finally {
//                    if (restore) {
//                        attrs.restore();
//                    }
//                }
//
//                if (mTranslator != null) {
//                    mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets);
//                }
//                mPendingOverscanInsets.set(0, 0, 0, 0);
//                mPendingContentInsets.set(mAttachInfo.mContentInsets);
//                mPendingStableInsets.set(mAttachInfo.mStableInsets);
//                mPendingVisibleInsets.set(0, 0, 0, 0);
//                if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow);
//                if (res < WindowManagerGlobal.ADD_OKAY) {
//                    mAttachInfo.mRootView = null;
//                    mAdded = false;
//                    mFallbackEventHandler.setView(null);
//                    unscheduleTraversals();
//                    setAccessibilityFocus(null, null);
//                    switch (res) {
//                        case WindowManagerGlobal.ADD_BAD_APP_TOKEN:
//                        case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN:
//                            throw new WindowManager.BadTokenException(
//                                    "Unable to add window -- token " + attrs.token
//                                    + " is not valid; is your activity running?");
//                        case WindowManagerGlobal.ADD_NOT_APP_TOKEN:
//                            throw new WindowManager.BadTokenException(
//                                    "Unable to add window -- token " + attrs.token
//                                    + " is not for an application");
//                        case WindowManagerGlobal.ADD_APP_EXITING:
//                            throw new WindowManager.BadTokenException(
//                                    "Unable to add window -- app for token " + attrs.token
//                                    + " is exiting");
//                        case WindowManagerGlobal.ADD_DUPLICATE_ADD:
//                            throw new WindowManager.BadTokenException(
//                                    "Unable to add window -- window " + mWindow
//                                    + " has already been added");
//                        case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED:
//                            // Silently ignore -- we would have just removed it
//                            // right away, anyway.
//                            return;
//                        case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON:
//                            throw new WindowManager.BadTokenException(
//                                    "Unable to add window " + mWindow +
//                                    " -- another window of this type already exists");
//                        case WindowManagerGlobal.ADD_PERMISSION_DENIED:
//                            throw new WindowManager.BadTokenException(
//                                    "Unable to add window " + mWindow +
//                                    " -- permission denied for this window type");
//                        case WindowManagerGlobal.ADD_INVALID_DISPLAY:
//                            throw new WindowManager.InvalidDisplayException(
//                                    "Unable to add window " + mWindow +
//                                    " -- the specified display can not be found");
//                        case WindowManagerGlobal.ADD_INVALID_TYPE:
//                            throw new WindowManager.InvalidDisplayException(
//                                    "Unable to add window " + mWindow
//                                    + " -- the specified window type is not valid");
//                    }
//                    throw new RuntimeException(
//                            "Unable to add window -- unknown error code " + res);
//                }
//
//                if (view instanceof RootViewSurfaceTaker) {
//                    mInputQueueCallback =
//                        ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue();
//                }
//                if (mInputChannel != null) {
//                    if (mInputQueueCallback != null) {
//                        mInputQueue = new InputQueue();
//                        mInputQueueCallback.onInputQueueCreated(mInputQueue);
//                    }
//                    mInputEventReceiver = new WindowInputEventReceiver(mInputChannel,
//                            Looper.myLooper());
//                }
//
//                view.assignParent(this);
//                mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0;
//                mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0;
//
//                if (mAccessibilityManager.isEnabled()) {
//                    mAccessibilityInteractionConnectionManager.ensureConnection();
//                }
//
//                if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
//                    view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
//                }
//
//                // Set up the input pipeline.
//                CharSequence counterSuffix = attrs.getTitle();
//                mSyntheticInputStage = new SyntheticInputStage();
//                InputStage viewPostImeStage = new ViewPostImeInputStage(mSyntheticInputStage);
//                InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage,
//                        "aq:native-post-ime:" + counterSuffix);
//                InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage);
//                InputStage imeStage = new ImeInputStage(earlyPostImeStage,
//                        "aq:ime:" + counterSuffix);
//                InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage);
//                InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage,
//                        "aq:native-pre-ime:" + counterSuffix);
//
//                mFirstInputStage = nativePreImeStage;
//                mFirstPostImeInputStage = earlyPostImeStage;
//                mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix;
//            }
//        }
//    }
//
//    /** Whether the window is in local focus mode or not */
//    private boolean isInLocalFocusMode() {
//        return (mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_LOCAL_FOCUS_MODE) != 0;
//    }
//
//    public int getWindowFlags() {
//        return mWindowAttributes.flags;
//    }
//
//    public int getDisplayId() {
//        return mDisplay.getDisplayId();
//    }
//
//    public CharSequence getTitle() {
//        return mWindowAttributes.getTitle();
//    }
//
//    void destroyHardwareResources() {
//        if (mAttachInfo.mHardwareRenderer != null) {
//            mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView);
//            mAttachInfo.mHardwareRenderer.destroy();
//        }
//    }
//
//    public void detachFunctor(long functor) {
//        // TODO: Make the resize buffer some other way to not need this block
//        mBlockResizeBuffer = true;
//        if (mAttachInfo.mHardwareRenderer != null) {
//            // Fence so that any pending invokeFunctor() messages will be processed
//            // before we return from detachFunctor.
//            mAttachInfo.mHardwareRenderer.stopDrawing();
//        }
//    }
//
//    /**
//     * Schedules the functor for execution in either kModeProcess or
//     * kModeProcessNoContext, depending on whether or not there is an EGLContext.
//     *
//     * @param functor The native functor to invoke
//     * @param waitForCompletion If true, this will not return until the functor
//     *                          has invoked. If false, the functor may be invoked
//     *                          asynchronously.
//     */
//    public void invokeFunctor(long functor, boolean waitForCompletion) {
//        ThreadedRenderer.invokeFunctor(functor, waitForCompletion);
//    }
//
//    public void registerAnimatingRenderNode(RenderNode animator) {
//        if (mAttachInfo.mHardwareRenderer != null) {
//            mAttachInfo.mHardwareRenderer.registerAnimatingRenderNode(animator);
//        } else {
//            if (mAttachInfo.mPendingAnimatingRenderNodes == null) {
//                mAttachInfo.mPendingAnimatingRenderNodes = new ArrayList<RenderNode>();
//            }
//            mAttachInfo.mPendingAnimatingRenderNodes.add(animator);
//        }
//    }
//
//    private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) {
//        mAttachInfo.mHardwareAccelerated = false;
//        mAttachInfo.mHardwareAccelerationRequested = false;
//
//        // Don't enable hardware acceleration when the application is in compatibility mode
//        if (mTranslator != null) return;
//
//        // Try to enable hardware acceleration if requested
//        final boolean hardwareAccelerated =
//                (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0;
//
//        if (hardwareAccelerated) {
//            if (!HardwareRenderer.isAvailable()) {
//                return;
//            }
//
//            // Persistent processes (including the system) should not do
//            // accelerated rendering on low-end devices.  In that case,
//            // sRendererDisabled will be set.  In addition, the system process
//            // itself should never do accelerated rendering.  In that case, both
//            // sRendererDisabled and sSystemRendererDisabled are set.  When
//            // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED
//            // can be used by code on the system process to escape that and enable
//            // HW accelerated drawing.  (This is basically for the lock screen.)
//
//            final boolean fakeHwAccelerated = (attrs.privateFlags &
//                    WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0;
//            final boolean forceHwAccelerated = (attrs.privateFlags &
//                    WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0;
//
//            if (fakeHwAccelerated) {
//                // This is exclusively for the preview windows the window manager
//                // shows for launching applications, so they will look more like
//                // the app being launched.
//                mAttachInfo.mHardwareAccelerationRequested = true;
//            } else if (!HardwareRenderer.sRendererDisabled
//                    || (HardwareRenderer.sSystemRendererDisabled && forceHwAccelerated)) {
//                if (mAttachInfo.mHardwareRenderer != null) {
//                    mAttachInfo.mHardwareRenderer.destroy();
//                }
//
//                final Rect insets = attrs.surfaceInsets;
//                final boolean hasSurfaceInsets = insets.left != 0 || insets.right != 0
//                        || insets.top != 0 || insets.bottom != 0;
//                final boolean translucent = attrs.format != PixelFormat.OPAQUE || hasSurfaceInsets;
//                mAttachInfo.mHardwareRenderer = HardwareRenderer.create(mContext, translucent);
//                if (mAttachInfo.mHardwareRenderer != null) {
//                    mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString());
//                    mAttachInfo.mHardwareAccelerated =
//                            mAttachInfo.mHardwareAccelerationRequested = true;
//                }
//            }
//        }
//    }
//
//    public View getView() {
//        return mView;
//    }
//
//    final WindowLeaked getLocation() {
//        return mLocation;
//    }
//
//    void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) {
//        synchronized (this) {
//            final int oldInsetLeft = mWindowAttributes.surfaceInsets.left;
//            final int oldInsetTop = mWindowAttributes.surfaceInsets.top;
//            final int oldInsetRight = mWindowAttributes.surfaceInsets.right;
//            final int oldInsetBottom = mWindowAttributes.surfaceInsets.bottom;
//            final int oldSoftInputMode = mWindowAttributes.softInputMode;
//            final boolean oldHasManualSurfaceInsets = mWindowAttributes.hasManualSurfaceInsets;
//
//            // Keep track of the actual window flags supplied by the client.
//            mClientWindowLayoutFlags = attrs.flags;
//
//            // Preserve compatible window flag if exists.
//            final int compatibleWindowFlag = mWindowAttributes.privateFlags
//                    & WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
//
//            // Transfer over system UI visibility values as they carry current state.
//            attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility;
//            attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility;
//
//            mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs);
//            if ((mWindowAttributesChangesFlag
//                    & WindowManager.LayoutParams.TRANSLUCENT_FLAGS_CHANGED) != 0) {
//                // Recompute system ui visibility.
//                mAttachInfo.mRecomputeGlobalAttributes = true;
//            }
//            if (mWindowAttributes.packageName == null) {
//                mWindowAttributes.packageName = mBasePackageName;
//            }
//            mWindowAttributes.privateFlags |= compatibleWindowFlag;
//
//            // Restore old surface insets.
//            mWindowAttributes.surfaceInsets.set(
//                    oldInsetLeft, oldInsetTop, oldInsetRight, oldInsetBottom);
//            mWindowAttributes.hasManualSurfaceInsets = oldHasManualSurfaceInsets;
//
//            applyKeepScreenOnFlag(mWindowAttributes);
//
//            if (newView) {
//                mSoftInputMode = attrs.softInputMode;
//                requestLayout();
//            }
//
//            // Don't lose the mode we last auto-computed.
//            if ((attrs.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST)
//                    == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) {
//                mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode
//                        & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST)
//                        | (oldSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST);
//            }
//
//            mWindowAttributesChanged = true;
//            scheduleTraversals();
//        }
//    }
//
//    void handleAppVisibility(boolean visible) {
//        if (mAppVisible != visible) {
//            mAppVisible = visible;
//            scheduleTraversals();
//            if (!mAppVisible) {
//                WindowManagerGlobal.trimForeground();
//            }
//        }
//    }
//
//    void handleGetNewSurface() {
//        mNewSurfaceNeeded = true;
//        mFullRedrawNeeded = true;
//        scheduleTraversals();
//    }
//
//    private final DisplayListener mDisplayListener = new DisplayListener() {
//        @Override
//        public void onDisplayChanged(int displayId) {
//            if (mView != null && mDisplay.getDisplayId() == displayId) {
//                final int oldDisplayState = mAttachInfo.mDisplayState;
//                final int newDisplayState = mDisplay.getState();
//                if (oldDisplayState != newDisplayState) {
//                    mAttachInfo.mDisplayState = newDisplayState;
//                    pokeDrawLockIfNeeded();
//                    if (oldDisplayState != Display.STATE_UNKNOWN) {
//                        final int oldScreenState = toViewScreenState(oldDisplayState);
//                        final int newScreenState = toViewScreenState(newDisplayState);
//                        if (oldScreenState != newScreenState) {
//                            mView.dispatchScreenStateChanged(newScreenState);
//                        }
//                        if (oldDisplayState == Display.STATE_OFF) {
//                            // Draw was suppressed so we need to for it to happen here.
//                            mFullRedrawNeeded = true;
//                            scheduleTraversals();
//                        }
//                    }
//                }
//            }
//        }
//
//        @Override
//        public void onDisplayRemoved(int displayId) {
//        }
//
//        @Override
//        public void onDisplayAdded(int displayId) {
//        }
//
//        private int toViewScreenState(int displayState) {
//            return displayState == Display.STATE_OFF ?
//                    View.SCREEN_STATE_OFF : View.SCREEN_STATE_ON;
//        }
//    };
//
//    void pokeDrawLockIfNeeded() {
//        final int displayState = mAttachInfo.mDisplayState;
//        if (mView != null && mAdded && mTraversalScheduled
//                && (displayState == Display.STATE_DOZE
//                        || displayState == Display.STATE_DOZE_SUSPEND)) {
//            try {
//                mWindowSession.pokeDrawLock(mWindow);
//            } catch (RemoteException ex) {
//                // System server died, oh well.
//            }
//        }
//    }
//
//    @Override
//    public void requestFitSystemWindows() {
//        checkThread();
//        mApplyInsetsRequested = true;
//        scheduleTraversals();
//    }
//
//    @Override
//    public void requestLayout() {
//        if (!mHandlingLayoutInLayoutRequest) {
//            checkThread();
//            mLayoutRequested = true;
//            scheduleTraversals();
//        }
//    }
//
//    @Override
//    public boolean isLayoutRequested() {
//        return mLayoutRequested;
//    }
//
//    void invalidate() {
//        mDirty.set(0, 0, mWidth, mHeight);
//        if (!mWillDrawSoon) {
//            scheduleTraversals();
//        }
//    }
//
//    void invalidateWorld(View view) {
//        view.invalidate();
//        if (view instanceof ViewGroup) {
//            ViewGroup parent = (ViewGroup) view;
//            for (int i = 0; i < parent.getChildCount(); i++) {
//                invalidateWorld(parent.getChildAt(i));
//            }
//        }
//    }
//
//    @Override
//    public void invalidateChild(View child, Rect dirty) {
//        invalidateChildInParent(null, dirty);
//    }
//
//    @Override
//    public ViewParent invalidateChildInParent(int[] location, Rect dirty) {
//        checkThread();
//        if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty);
//
//        if (dirty == null) {
//            invalidate();
//            return null;
//        } else if (dirty.isEmpty() && !mIsAnimating) {
//            return null;
//        }
//
//        if (mCurScrollY != 0 || mTranslator != null) {
//            mTempRect.set(dirty);
//            dirty = mTempRect;
//            if (mCurScrollY != 0) {
//                dirty.offset(0, -mCurScrollY);
//            }
//            if (mTranslator != null) {
//                mTranslator.translateRectInAppWindowToScreen(dirty);
//            }
//            if (mAttachInfo.mScalingRequired) {
//                dirty.inset(-1, -1);
//            }
//        }
//
//        invalidateRectOnScreen(dirty);
//
//        return null;
//    }
//
//    private void invalidateRectOnScreen(Rect dirty) {
//        final Rect localDirty = mDirty;
//        if (!localDirty.isEmpty() && !localDirty.contains(dirty)) {
//            mAttachInfo.mSetIgnoreDirtyState = true;
//            mAttachInfo.mIgnoreDirtyState = true;
//        }
//
//        // Add the new dirty rect to the current one
//        localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom);
//        // Intersect with the bounds of the window to skip
//        // updates that lie outside of the visible region
//        final float appScale = mAttachInfo.mApplicationScale;
//        final boolean intersected = localDirty.intersect(0, 0,
//                (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f));
//        if (!intersected) {
//            localDirty.setEmpty();
//        }
//        if (!mWillDrawSoon && (intersected || mIsAnimating)) {
//            scheduleTraversals();
//        }
//    }
//
//    void setWindowStopped(boolean stopped) {
//        if (mStopped != stopped) {
//            mStopped = stopped;
//            if (!mStopped) {
//                scheduleTraversals();
//            }
//        }
//    }
//
//    /**
//     * Block the input events during an Activity Transition. The KEYCODE_BACK event is allowed
//     * through to allow quick reversal of the Activity Transition.
//     *
//     * @param paused true to pause, false to resume.
//     */
//    public void setPausedForTransition(boolean paused) {
//        mPausedForTransition = paused;
//    }
//
//    @Override
//    public ViewParent getParent() {
//        return null;
//    }
//
//    @Override
//    public boolean getChildVisibleRect(View child, Rect r, Point offset) {
//        if (child != mView) {
//            throw new RuntimeException("child is not mine, honest!");
//        }
//        // Note: don't apply scroll offset, because we want to know its
//        // visibility in the virtual canvas being given to the view hierarchy.
//        return r.intersect(0, 0, mWidth, mHeight);
//    }
//
//    @Override
//    public void bringChildToFront(View child) {
//    }
//
//    int getHostVisibility() {
//        return mAppVisible ? mView.getVisibility() : View.GONE;
//    }
//
//    void disposeResizeBuffer() {
//        if (mResizeBuffer != null) {
//            mResizeBuffer.destroy();
//            mResizeBuffer = null;
//        }
//    }
//
//    /**
//     * Add LayoutTransition to the list of transitions to be started in the next traversal.
//     * This list will be cleared after the transitions on the list are start()'ed. These
//     * transitionsa re added by LayoutTransition itself when it sets up animations. The setup
//     * happens during the layout phase of traversal, which we want to complete before any of the
//     * animations are started (because those animations may side-effect properties that layout
//     * depends upon, like the bounding rectangles of the affected views). So we add the transition
//     * to the list and it is started just prior to starting the drawing phase of traversal.
//     *
//     * @param transition The LayoutTransition to be started on the next traversal.
//     *
//     * @hide
//     */
//    public void requestTransitionStart(LayoutTransition transition) {
//        if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) {
//            if (mPendingTransitions == null) {
//                 mPendingTransitions = new ArrayList<LayoutTransition>();
//            }
//            mPendingTransitions.add(transition);
//        }
//    }
//
//    /**
//     * Notifies the HardwareRenderer that a new frame will be coming soon.
//     * Currently only {@link ThreadedRenderer} cares about this, and uses
//     * this knowledge to adjust the scheduling of off-thread animations
//     */
//    void notifyRendererOfFramePending() {
//        if (mAttachInfo.mHardwareRenderer != null) {
//            mAttachInfo.mHardwareRenderer.notifyFramePending();
//        }
//    }
//
//    void scheduleTraversals() {
//        if (!mTraversalScheduled) {
//            mTraversalScheduled = true;
//            mTraversalBarrier = mHandler.getLooper().getQueue().postSyncBarrier();
//            mChoreographer.postCallback(
//                    Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null);
//            if (!mUnbufferedInputDispatch) {
//                scheduleConsumeBatchedInput();
//            }
//            notifyRendererOfFramePending();
//            pokeDrawLockIfNeeded();
//        }
//    }
//
//    void unscheduleTraversals() {
//        if (mTraversalScheduled) {
//            mTraversalScheduled = false;
//            mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier);
//            mChoreographer.removeCallbacks(
//                    Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null);
//        }
//    }
//
//    void doTraversal() {
//        if (mTraversalScheduled) {
//            mTraversalScheduled = false;
//            mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier);
//
//            if (mProfile) {
//                Debug.startMethodTracing("ViewAncestor");
//            }
//
//            performTraversals();
//
//            if (mProfile) {
//                Debug.stopMethodTracing();
//                mProfile = false;
//            }
//        }
//    }
//
//    private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) {
//        // Update window's global keep screen on flag: if a view has requested
//        // that the screen be kept on, then it is always set; otherwise, it is
//        // set to whatever the client last requested for the global state.
//        if (mAttachInfo.mKeepScreenOn) {
//            params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
//        } else {
//            params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
//                    | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
//        }
//    }
//
//    private boolean collectViewAttributes() {
//        if (mAttachInfo.mRecomputeGlobalAttributes) {
//            //Log.i(TAG, "Computing view hierarchy attributes!");
//            mAttachInfo.mRecomputeGlobalAttributes = false;
//            boolean oldScreenOn = mAttachInfo.mKeepScreenOn;
//            mAttachInfo.mKeepScreenOn = false;
//            mAttachInfo.mSystemUiVisibility = 0;
//            mAttachInfo.mHasSystemUiListeners = false;
//            mView.dispatchCollectViewAttributes(mAttachInfo, 0);
//            mAttachInfo.mSystemUiVisibility &= ~mAttachInfo.mDisabledSystemUiVisibility;
//            WindowManager.LayoutParams params = mWindowAttributes;
//            mAttachInfo.mSystemUiVisibility |= getImpliedSystemUiVisibility(params);
//            if (mAttachInfo.mKeepScreenOn != oldScreenOn
//                    || mAttachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility
//                    || mAttachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) {
//                applyKeepScreenOnFlag(params);
//                params.subtreeSystemUiVisibility = mAttachInfo.mSystemUiVisibility;
//                params.hasSystemUiListeners = mAttachInfo.mHasSystemUiListeners;
//                mView.dispatchWindowSystemUiVisiblityChanged(mAttachInfo.mSystemUiVisibility);
//                return true;
//            }
//        }
//        return false;
//    }
//
//    private int getImpliedSystemUiVisibility(WindowManager.LayoutParams params) {
//        int vis = 0;
//        // Translucent decor window flags imply stable system ui visibility.
//        if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) != 0) {
//            vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
//        }
//        if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) != 0) {
//            vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
//        }
//        return vis;
//    }
//
//    private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp,
//            final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) {
//        int childWidthMeasureSpec;
//        int childHeightMeasureSpec;
//        boolean windowSizeMayChange = false;
//
//        if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG,
//                "Measuring " + host + " in display " + desiredWindowWidth
//                + "x" + desiredWindowHeight + "...");
//
//        boolean goodMeasure = false;
//        if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) {
//            // On large screens, we don't want to allow dialogs to just
//            // stretch to fill the entire width of the screen to display
//            // one line of text.  First try doing the layout at a smaller
//            // size to see if it will fit.
//            final DisplayMetrics packageMetrics = res.getDisplayMetrics();
//            res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true);
//            int baseSize = 0;
//            if (mTmpValue.type == TypedValue.TYPE_DIMENSION) {
//                baseSize = (int)mTmpValue.getDimension(packageMetrics);
//            }
//            if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize);
//            if (baseSize != 0 && desiredWindowWidth > baseSize) {
//                childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width);
//                childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height);
//                performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
//                if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured ("
//                        + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")");
//                if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) {
//                    goodMeasure = true;
//                } else {
//                    // Didn't fit in that size... try expanding a bit.
//                    baseSize = (baseSize+desiredWindowWidth)/2;
//                    if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize="
//                            + baseSize);
//                    childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width);
//                    performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
//                    if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured ("
//                            + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")");
//                    if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) {
//                        if (DEBUG_DIALOG) Log.v(TAG, "Good!");
//                        goodMeasure = true;
//                    }
//                }
//            }
//        }
//
//        if (!goodMeasure) {
//            childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width);
//            childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height);
//            performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
//            if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) {
//                windowSizeMayChange = true;
//            }
//        }
//
//        if (DBG) {
//            System.out.println("======================================");
//            System.out.println("performTraversals -- after measure");
//            host.debug();
//        }
//
//        return windowSizeMayChange;
//    }
//
//    /**
//     * Modifies the input matrix such that it maps view-local coordinates to
//     * on-screen coordinates.
//     *
//     * @param m input matrix to modify
//     */
//    void transformMatrixToGlobal(Matrix m) {
//        m.preTranslate(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop);
//    }
//
//    /**
//     * Modifies the input matrix such that it maps on-screen coordinates to
//     * view-local coordinates.
//     *
//     * @param m input matrix to modify
//     */
//    void transformMatrixToLocal(Matrix m) {
//        m.postTranslate(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop);
//    }
//
//    /* package */ WindowInsets getWindowInsets(boolean forceConstruct) {
//        if (mLastWindowInsets == null || forceConstruct) {
//            mDispatchContentInsets.set(mAttachInfo.mContentInsets);
//            mDispatchStableInsets.set(mAttachInfo.mStableInsets);
//            Rect contentInsets = mDispatchContentInsets;
//            Rect stableInsets = mDispatchStableInsets;
//            // For dispatch we preserve old logic, but for direct requests from Views we allow to
//            // immediately use pending insets.
//            if (!forceConstruct
//                    && (!mPendingContentInsets.equals(contentInsets) ||
//                        !mPendingStableInsets.equals(stableInsets))) {
//                contentInsets = mPendingContentInsets;
//                stableInsets = mPendingStableInsets;
//            }
//            Rect outsets = mAttachInfo.mOutsets;
//            if (outsets.left > 0 || outsets.top > 0 || outsets.right > 0 || outsets.bottom > 0) {
//                contentInsets = new Rect(contentInsets.left + outsets.left,
//                        contentInsets.top + outsets.top, contentInsets.right + outsets.right,
//                        contentInsets.bottom + outsets.bottom);
//            }
//            mLastWindowInsets = new WindowInsets(contentInsets,
//                    null /* windowDecorInsets */, stableInsets,
//                    mContext.getResources().getConfiguration().isScreenRound());
//        }
//        return mLastWindowInsets;
//    }
//
//    void dispatchApplyInsets(View host) {
//        host.dispatchApplyWindowInsets(getWindowInsets(true /* forceConstruct */));
//    }
//
//    private void performTraversals() {
//        // cache mView since it is used so much below...
//        final View host = mView;
//
//        if (DBG) {
//            System.out.println("======================================");
//            System.out.println("performTraversals");
//            host.debug();
//        }
//
//        if (host == null || !mAdded)
//            return;
//
//        mIsInTraversal = true;
//        mWillDrawSoon = true;
//        boolean windowSizeMayChange = false;
//        boolean newSurface = false;
//        boolean surfaceChanged = false;
//        WindowManager.LayoutParams lp = mWindowAttributes;
//
//        int desiredWindowWidth;
//        int desiredWindowHeight;
//
//        final int viewVisibility = getHostVisibility();
//        boolean viewVisibilityChanged = mViewVisibility != viewVisibility
//                || mNewSurfaceNeeded;
//
//        WindowManager.LayoutParams params = null;
//        if (mWindowAttributesChanged) {
//            mWindowAttributesChanged = false;
//            surfaceChanged = true;
//            params = lp;
//        }
//        CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo();
//        if (compatibilityInfo.supportsScreen() == mLastInCompatMode) {
//            params = lp;
//            mFullRedrawNeeded = true;
//            mLayoutRequested = true;
//            if (mLastInCompatMode) {
//                params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
//                mLastInCompatMode = false;
//            } else {
//                params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
//                mLastInCompatMode = true;
//            }
//        }
//
//        mWindowAttributesChangesFlag = 0;
//
//        Rect frame = mWinFrame;
//        if (mFirst) {
//            mFullRedrawNeeded = true;
//            mLayoutRequested = true;
//
//            if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL
//                    || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) {
//                // NOTE -- system code, won't try to do compat mode.
//                Point size = new Point();
//                mDisplay.getRealSize(size);
//                desiredWindowWidth = size.x;
//                desiredWindowHeight = size.y;
//            } else {
//                DisplayMetrics packageMetrics =
//                    mView.getContext().getResources().getDisplayMetrics();
//                desiredWindowWidth = packageMetrics.widthPixels;
//                desiredWindowHeight = packageMetrics.heightPixels;
//            }
//
//            // We used to use the following condition to choose 32 bits drawing caches:
//            // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888
//            // However, windows are now always 32 bits by default, so choose 32 bits
//            mAttachInfo.mUse32BitDrawingCache = true;
//            mAttachInfo.mHasWindowFocus = false;
//            mAttachInfo.mWindowVisibility = viewVisibility;
//            mAttachInfo.mRecomputeGlobalAttributes = false;
//            viewVisibilityChanged = false;
//            mLastConfiguration.setTo(host.getResources().getConfiguration());
//            mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility;
//            // Set the layout direction if it has not been set before (inherit is the default)
//            if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) {
//                host.setLayoutDirection(mLastConfiguration.getLayoutDirection());
//            }
//            host.dispatchAttachedToWindow(mAttachInfo, 0);
//            mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true);
//            dispatchApplyInsets(host);
//            //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn);
//
//        } else {
//            desiredWindowWidth = frame.width();
//            desiredWindowHeight = frame.height();
//            if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) {
//                if (DEBUG_ORIENTATION) Log.v(TAG,
//                        "View " + host + " resized to: " + frame);
//                mFullRedrawNeeded = true;
//                mLayoutRequested = true;
//                windowSizeMayChange = true;
//            }
//        }
//
//        if (viewVisibilityChanged) {
//            mAttachInfo.mWindowVisibility = viewVisibility;
//            host.dispatchWindowVisibilityChanged(viewVisibility);
//            if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) {
//                destroyHardwareResources();
//            }
//            if (viewVisibility == View.GONE) {
//                // After making a window gone, we will count it as being
//                // shown for the first time the next time it gets focus.
//                mHasHadWindowFocus = false;
//            }
//        }
//
//        // Non-visible windows can't hold accessibility focus.
//        if (mAttachInfo.mWindowVisibility != View.VISIBLE) {
//            host.clearAccessibilityFocus();
//        }
//
//        // Execute enqueued actions on every traversal in case a detached view enqueued an action
//        getRunQueue().executeActions(mAttachInfo.mHandler);
//
//        boolean insetsChanged = false;
//
//        boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw);
//        if (layoutRequested) {
//
//            final Resources res = mView.getContext().getResources();
//
//            if (mFirst) {
//                // make sure touch mode code executes by setting cached value
//                // to opposite of the added touch mode.
//                mAttachInfo.mInTouchMode = !mAddedTouchMode;
//                ensureTouchModeLocally(mAddedTouchMode);
//            } else {
//                if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) {
//                    insetsChanged = true;
//                }
//                if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) {
//                    insetsChanged = true;
//                }
//                if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) {
//                    insetsChanged = true;
//                }
//                if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) {
//                    mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets);
//                    if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: "
//                            + mAttachInfo.mVisibleInsets);
//                }
//                if (!mPendingOutsets.equals(mAttachInfo.mOutsets)) {
//                    insetsChanged = true;
//                }
//                if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT
//                        || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) {
//                    windowSizeMayChange = true;
//
//                    if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL
//                            || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) {
//                        // NOTE -- system code, won't try to do compat mode.
//                        Point size = new Point();
//                        mDisplay.getRealSize(size);
//                        desiredWindowWidth = size.x;
//                        desiredWindowHeight = size.y;
//                    } else {
//                        DisplayMetrics packageMetrics = res.getDisplayMetrics();
//                        desiredWindowWidth = packageMetrics.widthPixels;
//                        desiredWindowHeight = packageMetrics.heightPixels;
//                    }
//                }
//            }
//
//            // Ask host how big it wants to be
//            windowSizeMayChange |= measureHierarchy(host, lp, res,
//                    desiredWindowWidth, desiredWindowHeight);
//        }
//
//        if (collectViewAttributes()) {
//            params = lp;
//        }
//        if (mAttachInfo.mForceReportNewAttributes) {
//            mAttachInfo.mForceReportNewAttributes = false;
//            params = lp;
//        }
//
//        if (mFirst || mAttachInfo.mViewVisibilityChanged) {
//            mAttachInfo.mViewVisibilityChanged = false;
//            int resizeMode = mSoftInputMode &
//                    WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST;
//            // If we are in auto resize mode, then we need to determine
//            // what mode to use now.
//            if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) {
//                final int N = mAttachInfo.mScrollContainers.size();
//                for (int i=0; i<N; i++) {
//                    if (mAttachInfo.mScrollContainers.get(i).isShown()) {
//                        resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE;
//                    }
//                }
//                if (resizeMode == 0) {
//                    resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN;
//                }
//                if ((lp.softInputMode &
//                        WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) {
//                    lp.softInputMode = (lp.softInputMode &
//                            ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) |
//                            resizeMode;
//                    params = lp;
//                }
//            }
//        }
//
//        if (params != null) {
//            if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) {
//                if (!PixelFormat.formatHasAlpha(params.format)) {
//                    params.format = PixelFormat.TRANSLUCENT;
//                }
//            }
//            mAttachInfo.mOverscanRequested = (params.flags
//                    & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0;
//        }
//
//        if (mApplyInsetsRequested) {
//            mApplyInsetsRequested = false;
//            mLastOverscanRequested = mAttachInfo.mOverscanRequested;
//            dispatchApplyInsets(host);
//            if (mLayoutRequested) {
//                // Short-circuit catching a new layout request here, so
//                // we don't need to go through two layout passes when things
//                // change due to fitting system windows, which can happen a lot.
//                windowSizeMayChange |= measureHierarchy(host, lp,
//                        mView.getContext().getResources(),
//                        desiredWindowWidth, desiredWindowHeight);
//            }
//        }
//
//        if (layoutRequested) {
//            // Clear this now, so that if anything requests a layout in the
//            // rest of this function we will catch it and re-run a full
//            // layout pass.
//            mLayoutRequested = false;
//        }
//
//        boolean windowShouldResize = layoutRequested && windowSizeMayChange
//            && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight())
//                || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT &&
//                        frame.width() < desiredWindowWidth && frame.width() != mWidth)
//                || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT &&
//                        frame.height() < desiredWindowHeight && frame.height() != mHeight));
//
//        // Determine whether to compute insets.
//        // If there are no inset listeners remaining then we may still need to compute
//        // insets in case the old insets were non-empty and must be reset.
//        final boolean computesInternalInsets =
//                mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners()
//                || mAttachInfo.mHasNonEmptyGivenInternalInsets;
//
//        boolean insetsPending = false;
//        int relayoutResult = 0;
//
//        if (mFirst || windowShouldResize || insetsChanged ||
//                viewVisibilityChanged || params != null) {
//
//            if (viewVisibility == View.VISIBLE) {
//                // If this window is giving internal insets to the window
//                // manager, and it is being added or changing its visibility,
//                // then we want to first give the window manager "fake"
//                // insets to cause it to effectively ignore the content of
//                // the window during layout.  This avoids it briefly causing
//                // other windows to resize/move based on the raw frame of the
//                // window, waiting until we can finish laying out this window
//                // and get back to the window manager with the ultimately
//                // computed insets.
//                insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged);
//            }
//
//            if (mSurfaceHolder != null) {
//                mSurfaceHolder.mSurfaceLock.lock();
//                mDrawingAllowed = true;
//            }
//
//            boolean hwInitialized = false;
//            boolean contentInsetsChanged = false;
//            boolean hadSurface = mSurface.isValid();
//
//            try {
//                if (DEBUG_LAYOUT) {
//                    Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" +
//                            host.getMeasuredHeight() + ", params=" + params);
//                }
//
//                if (mAttachInfo.mHardwareRenderer != null) {
//                    // relayoutWindow may decide to destroy mSurface. As that decision
//                    // happens in WindowManager service, we need to be defensive here
//                    // and stop using the surface in case it gets destroyed.
//                    if (mAttachInfo.mHardwareRenderer.pauseSurface(mSurface)) {
//                        // Animations were running so we need to push a frame
//                        // to resume them
//                        mDirty.set(0, 0, mWidth, mHeight);
//                    }
//                    mChoreographer.mFrameInfo.addFlags(FrameInfo.FLAG_WINDOW_LAYOUT_CHANGED);
//                }
//                final int surfaceGenerationId = mSurface.getGenerationId();
//                relayoutResult = relayoutWindow(params, viewVisibility, insetsPending);
//
//                if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString()
//                        + " overscan=" + mPendingOverscanInsets.toShortString()
//                        + " content=" + mPendingContentInsets.toShortString()
//                        + " visible=" + mPendingVisibleInsets.toShortString()
//                        + " visible=" + mPendingStableInsets.toShortString()
//                        + " outsets=" + mPendingOutsets.toShortString()
//                        + " surface=" + mSurface);
//
//                if (mPendingConfiguration.seq != 0) {
//                    if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: "
//                            + mPendingConfiguration);
//                    updateConfiguration(mPendingConfiguration, !mFirst);
//                    mPendingConfiguration.seq = 0;
//                }
//
//                final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals(
//                        mAttachInfo.mOverscanInsets);
//                contentInsetsChanged = !mPendingContentInsets.equals(
//                        mAttachInfo.mContentInsets);
//                final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals(
//                        mAttachInfo.mVisibleInsets);
//                final boolean stableInsetsChanged = !mPendingStableInsets.equals(
//                        mAttachInfo.mStableInsets);
//                final boolean outsetsChanged = !mPendingOutsets.equals(mAttachInfo.mOutsets);
//                if (contentInsetsChanged) {
//                    if (mWidth > 0 && mHeight > 0 && lp != null &&
//                            ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility)
//                                    & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 &&
//                            mSurface != null && mSurface.isValid() &&
//                            !mAttachInfo.mTurnOffWindowResizeAnim &&
//                            mAttachInfo.mHardwareRenderer != null &&
//                            mAttachInfo.mHardwareRenderer.isEnabled() &&
//                            lp != null && !PixelFormat.formatHasAlpha(lp.format)
//                            && !mBlockResizeBuffer) {
//
//                        disposeResizeBuffer();
//
//// TODO: Again....
////                        if (mResizeBuffer == null) {
////                            mResizeBuffer = mAttachInfo.mHardwareRenderer.createDisplayListLayer(
////                                    mWidth, mHeight);
////                        }
////                        mResizeBuffer.prepare(mWidth, mHeight, false);
////                        RenderNode layerRenderNode = mResizeBuffer.startRecording();
////                        HardwareCanvas layerCanvas = layerRenderNode.start(mWidth, mHeight);
////                        try {
////                            final int restoreCount = layerCanvas.save();
////
////                            int yoff;
////                            final boolean scrolling = mScroller != null
////                                    && mScroller.computeScrollOffset();
////                            if (scrolling) {
////                                yoff = mScroller.getCurrY();
////                                mScroller.abortAnimation();
////                            } else {
////                                yoff = mScrollY;
////                            }
////
////                            layerCanvas.translate(0, -yoff);
////                            if (mTranslator != null) {
////                                mTranslator.translateCanvas(layerCanvas);
////                            }
////
////                            RenderNode renderNode = mView.mRenderNode;
////                            if (renderNode != null && renderNode.isValid()) {
////                                layerCanvas.drawDisplayList(renderNode, null,
////                                        RenderNode.FLAG_CLIP_CHILDREN);
////                            } else {
////                                mView.draw(layerCanvas);
////                            }
////
////                            drawAccessibilityFocusedDrawableIfNeeded(layerCanvas);
////
////                            mResizeBufferStartTime = SystemClock.uptimeMillis();
////                            mResizeBufferDuration = mView.getResources().getInteger(
////                                    com.android.internal.R.integer.config_mediumAnimTime);
////
////                            layerCanvas.restoreToCount(restoreCount);
////                            layerRenderNode.end(layerCanvas);
////                            layerRenderNode.setCaching(true);
////                            layerRenderNode.setLeftTopRightBottom(0, 0, mWidth, mHeight);
////                            mTempRect.set(0, 0, mWidth, mHeight);
////                        } finally {
////                            mResizeBuffer.endRecording(mTempRect);
////                        }
////                        mAttachInfo.mHardwareRenderer.flushLayerUpdates();
//                    }
//                    mAttachInfo.mContentInsets.set(mPendingContentInsets);
//                    if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: "
//                            + mAttachInfo.mContentInsets);
//                }
//                if (overscanInsetsChanged) {
//                    mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets);
//                    if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: "
//                            + mAttachInfo.mOverscanInsets);
//                    // Need to relayout with content insets.
//                    contentInsetsChanged = true;
//                }
//                if (stableInsetsChanged) {
//                    mAttachInfo.mStableInsets.set(mPendingStableInsets);
//                    if (DEBUG_LAYOUT) Log.v(TAG, "Decor insets changing to: "
//                            + mAttachInfo.mStableInsets);
//                    // Need to relayout with content insets.
//                    contentInsetsChanged = true;
//                }
//                if (contentInsetsChanged || mLastSystemUiVisibility !=
//                        mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested
//                        || mLastOverscanRequested != mAttachInfo.mOverscanRequested
//                        || outsetsChanged) {
//                    mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility;
//                    mLastOverscanRequested = mAttachInfo.mOverscanRequested;
//                    mAttachInfo.mOutsets.set(mPendingOutsets);
//                    mApplyInsetsRequested = false;
//                    dispatchApplyInsets(host);
//                }
//                if (visibleInsetsChanged) {
//                    mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets);
//                    if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: "
//                            + mAttachInfo.mVisibleInsets);
//                }
//
//                if (!hadSurface) {
//                    if (mSurface.isValid()) {
//                        // If we are creating a new surface, then we need to
//                        // completely redraw it.  Also, when we get to the
//                        // point of drawing it we will hold off and schedule
//                        // a new traversal instead.  This is so we can tell the
//                        // window manager about all of the windows being displayed
//                        // before actually drawing them, so it can display then
//                        // all at once.
//                        newSurface = true;
//                        mFullRedrawNeeded = true;
//                        mPreviousTransparentRegion.setEmpty();
//
//                        // Only initialize up-front if transparent regions are not
//                        // requested, otherwise defer to see if the entire window
//                        // will be transparent
//                        if (mAttachInfo.mHardwareRenderer != null) {
//                            try {
//                                hwInitialized = mAttachInfo.mHardwareRenderer.initialize(
//                                        mSurface);
//                                if (hwInitialized && (host.mPrivateFlags
//                                        & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) == 0) {
//                                    // Don't pre-allocate if transparent regions
//                                    // are requested as they may not be needed
//                                    mSurface.allocateBuffers();
//                                }
//                            } catch (OutOfResourcesException e) {
//                                handleOutOfResourcesException(e);
//                                return;
//                            }
//                        }
//                    }
//                } else if (!mSurface.isValid()) {
//                    // If the surface has been removed, then reset the scroll
//                    // positions.
//                    if (mLastScrolledFocus != null) {
//                        mLastScrolledFocus.clear();
//                    }
//                    mScrollY = mCurScrollY = 0;
//                    if (mView instanceof RootViewSurfaceTaker) {
//                        ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY);
//                    }
//                    if (mScroller != null) {
//                        mScroller.abortAnimation();
//                    }
//                    disposeResizeBuffer();
//                    // Our surface is gone
//                    if (mAttachInfo.mHardwareRenderer != null &&
//                            mAttachInfo.mHardwareRenderer.isEnabled()) {
//                        mAttachInfo.mHardwareRenderer.destroy();
//                    }
//                } else if (surfaceGenerationId != mSurface.getGenerationId() &&
//                        mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) {
//                    mFullRedrawNeeded = true;
//                    try {
//                        mAttachInfo.mHardwareRenderer.updateSurface(mSurface);
//                    } catch (OutOfResourcesException e) {
//                        handleOutOfResourcesException(e);
//                        return;
//                    }
//                }
//            } catch (RemoteException e) {
//            }
//
//            if (DEBUG_ORIENTATION) Log.v(
//                    TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface);
//
//            mAttachInfo.mWindowLeft = frame.left;
//            mAttachInfo.mWindowTop = frame.top;
//
//            // !!FIXME!! This next section handles the case where we did not get the
//            // window size we asked for. We should avoid this by getting a maximum size from
//            // the window session beforehand.
//            if (mWidth != frame.width() || mHeight != frame.height()) {
//                mWidth = frame.width();
//                mHeight = frame.height();
//            }
//
//            if (mSurfaceHolder != null) {
//                // The app owns the surface; tell it about what is going on.
//                if (mSurface.isValid()) {
//                    // XXX .copyFrom() doesn't work!
//                    //mSurfaceHolder.mSurface.copyFrom(mSurface);
//                    mSurfaceHolder.mSurface = mSurface;
//                }
//                mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight);
//                mSurfaceHolder.mSurfaceLock.unlock();
//                if (mSurface.isValid()) {
//                    if (!hadSurface) {
//                        mSurfaceHolder.ungetCallbacks();
//
//                        mIsCreating = true;
//                        mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder);
//                        SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks();
//                        if (callbacks != null) {
//                            for (SurfaceHolder.Callback c : callbacks) {
//                                c.surfaceCreated(mSurfaceHolder);
//                            }
//                        }
//                        surfaceChanged = true;
//                    }
//                    if (surfaceChanged) {
//                        mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder,
//                                lp.format, mWidth, mHeight);
//                        SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks();
//                        if (callbacks != null) {
//                            for (SurfaceHolder.Callback c : callbacks) {
//                                c.surfaceChanged(mSurfaceHolder, lp.format,
//                                        mWidth, mHeight);
//                            }
//                        }
//                    }
//                    mIsCreating = false;
//                } else if (hadSurface) {
//                    mSurfaceHolder.ungetCallbacks();
//                    SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks();
//                    mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder);
//                    if (callbacks != null) {
//                        for (SurfaceHolder.Callback c : callbacks) {
//                            c.surfaceDestroyed(mSurfaceHolder);
//                        }
//                    }
//                    mSurfaceHolder.mSurfaceLock.lock();
//                    try {
//                        mSurfaceHolder.mSurface = new Surface();
//                    } finally {
//                        mSurfaceHolder.mSurfaceLock.unlock();
//                    }
//                }
//            }
//
//            final HardwareRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer;
//            if (hardwareRenderer != null && hardwareRenderer.isEnabled()) {
//                if (hwInitialized
//                        || mWidth != hardwareRenderer.getWidth()
//                        || mHeight != hardwareRenderer.getHeight()) {
//                    hardwareRenderer.setup(mWidth, mHeight, mAttachInfo,
//                            mWindowAttributes.surfaceInsets);
//                    if (!hwInitialized) {
//                        hardwareRenderer.invalidate(mSurface);
//                        mFullRedrawNeeded = true;
//                    }
//                }
//            }
//
//            if (!mStopped || mReportNextDraw) {
//                boolean focusChangedDueToTouchMode = ensureTouchModeLocally(
//                        (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0);
//                if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth()
//                        || mHeight != host.getMeasuredHeight() || contentInsetsChanged) {
//                    int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width);
//                    int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height);
//
//                    if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed!  mWidth="
//                            + mWidth + " measuredWidth=" + host.getMeasuredWidth()
//                            + " mHeight=" + mHeight
//                            + " measuredHeight=" + host.getMeasuredHeight()
//                            + " coveredInsetsChanged=" + contentInsetsChanged);
//
//                     // Ask host how big it wants to be
//                    performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
//
//                    // Implementation of weights from WindowManager.LayoutParams
//                    // We just grow the dimensions as needed and re-measure if
//                    // needs be
//                    int width = host.getMeasuredWidth();
//                    int height = host.getMeasuredHeight();
//                    boolean measureAgain = false;
//
//                    if (lp.horizontalWeight > 0.0f) {
//                        width += (int) ((mWidth - width) * lp.horizontalWeight);
//                        childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width,
//                                MeasureSpec.EXACTLY);
//                        measureAgain = true;
//                    }
//                    if (lp.verticalWeight > 0.0f) {
//                        height += (int) ((mHeight - height) * lp.verticalWeight);
//                        childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height,
//                                MeasureSpec.EXACTLY);
//                        measureAgain = true;
//                    }
//
//                    if (measureAgain) {
//                        if (DEBUG_LAYOUT) Log.v(TAG,
//                                "And hey let's measure once more: width=" + width
//                                + " height=" + height);
//                        performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
//                    }
//
//                    layoutRequested = true;
//                }
//            }
//        } else {
//            // Not the first pass and no window/insets/visibility change but the window
//            // may have moved and we need check that and if so to update the left and right
//            // in the attach info. We translate only the window frame since on window move
//            // the window manager tells us only for the new frame but the insets are the
//            // same and we do not want to translate them more than once.
//
//            // TODO: Well, we are checking whether the frame has changed similarly
//            // to how this is done for the insets. This is however incorrect since
//            // the insets and the frame are translated. For example, the old frame
//            // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new
//            // reported frame is (2, 2 - 2, 2) which implies no change but this is not
//            // true since we are comparing a not translated value to a translated one.
//            // This scenario is rare but we may want to fix that.
//
//            final boolean windowMoved = (mAttachInfo.mWindowLeft != frame.left
//                    || mAttachInfo.mWindowTop != frame.top);
//            if (windowMoved) {
//                if (mTranslator != null) {
//                    mTranslator.translateRectInScreenToAppWinFrame(frame);
//                }
//                mAttachInfo.mWindowLeft = frame.left;
//                mAttachInfo.mWindowTop = frame.top;
//
//                // Update the light position for the new window offsets.
//                if (mAttachInfo.mHardwareRenderer != null) {
//                    mAttachInfo.mHardwareRenderer.setLightCenter(mAttachInfo);
//                }
//            }
//        }
//
//        final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw);
//        boolean triggerGlobalLayoutListener = didLayout
//                || mAttachInfo.mRecomputeGlobalAttributes;
//        if (didLayout) {
//            performLayout(lp, desiredWindowWidth, desiredWindowHeight);
//
//            // By this point all views have been sized and positioned
//            // We can compute the transparent area
//
//            if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) {
//                // start out transparent
//                // TODO: AVOID THAT CALL BY CACHING THE RESULT?
//                host.getLocationInWindow(mTmpLocation);
//                mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1],
//                        mTmpLocation[0] + host.mRight - host.mLeft,
//                        mTmpLocation[1] + host.mBottom - host.mTop);
//
//                host.gatherTransparentRegion(mTransparentRegion);
//                if (mTranslator != null) {
//                    mTranslator.translateRegionInWindowToScreen(mTransparentRegion);
//                }
//
//                if (!mTransparentRegion.equals(mPreviousTransparentRegion)) {
//                    mPreviousTransparentRegion.set(mTransparentRegion);
//                    mFullRedrawNeeded = true;
//                    // reconfigure window manager
//                    try {
//                        mWindowSession.setTransparentRegion(mWindow, mTransparentRegion);
//                    } catch (RemoteException e) {
//                    }
//                }
//            }
//
//            if (DBG) {
//                System.out.println("======================================");
//                System.out.println("performTraversals -- after setFrame");
//                host.debug();
//            }
//        }
//
//        if (triggerGlobalLayoutListener) {
//            mAttachInfo.mRecomputeGlobalAttributes = false;
//            mAttachInfo.mTreeObserver.dispatchOnGlobalLayout();
//        }
//
//        if (computesInternalInsets) {
//            // Clear the original insets.
//            final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets;
//            insets.reset();
//
//            // Compute new insets in place.
//            mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets);
//            mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty();
//
//            // Tell the window manager.
//            if (insetsPending || !mLastGivenInsets.equals(insets)) {
//                mLastGivenInsets.set(insets);
//
//                // Translate insets to screen coordinates if needed.
//                final Rect contentInsets;
//                final Rect visibleInsets;
//                final Region touchableRegion;
//                if (mTranslator != null) {
//                    contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets);
//                    visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets);
//                    touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion);
//                } else {
//                    contentInsets = insets.contentInsets;
//                    visibleInsets = insets.visibleInsets;
//                    touchableRegion = insets.touchableRegion;
//                }
//
//                try {
//                    mWindowSession.setInsets(mWindow, insets.mTouchableInsets,
//                            contentInsets, visibleInsets, touchableRegion);
//                } catch (RemoteException e) {
//                }
//            }
//        }
//
//        boolean skipDraw = false;
//
//        if (mFirst) {
//            // handle first focus request
//            if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()="
//                    + mView.hasFocus());
//            if (mView != null) {
//                if (!mView.hasFocus()) {
//                    mView.requestFocus(View.FOCUS_FORWARD);
//                    if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view="
//                            + mView.findFocus());
//                } else {
//                    if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view="
//                            + mView.findFocus());
//                }
//            }
//        } else if (mWindowsAnimating) {
//            if (mRemainingFrameCount <= 0) {
//                skipDraw = true;
//            }
//            mRemainingFrameCount--;
//        }
//
//        mFirst = false;
//        mWillDrawSoon = false;
//        mNewSurfaceNeeded = false;
//        mViewVisibility = viewVisibility;
//
//        if (mAttachInfo.mHasWindowFocus && !isInLocalFocusMode()) {
//            final boolean imTarget = WindowManager.LayoutParams
//                    .mayUseInputMethod(mWindowAttributes.flags);
//            if (imTarget != mLastWasImTarget) {
//                mLastWasImTarget = imTarget;
//                InputMethodManager imm = InputMethodManager.peekInstance();
//                if (imm != null && imTarget) {
//                    imm.onPreWindowFocus(mView, true /* hasWindowFocus */);
//                    imm.onPostWindowFocus(mView, mView.findFocus(),
//                            mWindowAttributes.softInputMode,
//                            !mHasHadWindowFocus, mWindowAttributes.flags);
//                }
//            }
//        }
//
//        // Remember if we must report the next draw.
//        if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) {
//            mReportNextDraw = true;
//        }
//
//        boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() ||
//                viewVisibility != View.VISIBLE;
//
//        if (!cancelDraw && !newSurface) {
//            if (!skipDraw || mReportNextDraw) {
//                if (mPendingTransitions != null && mPendingTransitions.size() > 0) {
//                    for (int i = 0; i < mPendingTransitions.size(); ++i) {
//                        mPendingTransitions.get(i).startChangingAnimations();
//                    }
//                    mPendingTransitions.clear();
//                }
//
//                performDraw();
//            }
//        } else {
//            if (viewVisibility == View.VISIBLE) {
//                // Try again
//                scheduleTraversals();
//            } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) {
//                for (int i = 0; i < mPendingTransitions.size(); ++i) {
//                    mPendingTransitions.get(i).endChangingAnimations();
//                }
//                mPendingTransitions.clear();
//            }
//        }
//
//        mIsInTraversal = false;
//    }
//
//    private void handleOutOfResourcesException(OutOfResourcesException e) {
//        Log.e(TAG, "OutOfResourcesException initializing HW surface", e);
//        try {
//            if (!mWindowSession.outOfMemory(mWindow) &&
//                    Process.myUid() != Process.SYSTEM_UID) {
//                Slog.w(TAG, "No processes killed for memory; killing self");
//                Process.killProcess(Process.myPid());
//            }
//        } catch (RemoteException ex) {
//        }
//        mLayoutRequested = true;    // ask wm for a new surface next time.
//    }
//
//    private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) {
//        Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure");
//        try {
//            mView.measure(childWidthMeasureSpec, childHeightMeasureSpec);
//        } finally {
//            Trace.traceEnd(Trace.TRACE_TAG_VIEW);
//        }
//    }
//
//    /**
//     * Called by {@link View#isInLayout()} to determine whether the view hierarchy
//     * is currently undergoing a layout pass.
//     *
//     * @return whether the view hierarchy is currently undergoing a layout pass
//     */
//    boolean isInLayout() {
//        return mInLayout;
//    }
//
//    /**
//     * Called by {@link View#requestLayout()} if the view hierarchy is currently
//     * undergoing a layout pass. requestLayout() should not generally be called during layout,
//     * unless the container hierarchy knows what it is doing (i.e., it is fine as long as
//     * all children in that container hierarchy are measured and laid out at the end of the layout
//     * pass for that container). If requestLayout() is called anyway, we handle it correctly
//     * by registering all requesters during a frame as it proceeds. At the end of the frame,
//     * we check all of those views to see if any still have pending layout requests, which
//     * indicates that they were not correctly handled by their container hierarchy. If that is
//     * the case, we clear all such flags in the tree, to remove the buggy flag state that leads
//     * to blank containers, and force a second request/measure/layout pass in this frame. If
//     * more requestLayout() calls are received during that second layout pass, we post those
//     * requests to the next frame to avoid possible infinite loops.
//     *
//     * <p>The return value from this method indicates whether the request should proceed
//     * (if it is a request during the first layout pass) or should be skipped and posted to the
//     * next frame (if it is a request during the second layout pass).</p>
//     *
//     * @param view the view that requested the layout.
//     *
//     * @return true if request should proceed, false otherwise.
//     */
//    boolean requestLayoutDuringLayout(final View view) {
//        if (view.mParent == null || view.mAttachInfo == null) {
//            // Would not normally trigger another layout, so just let it pass through as usual
//            return true;
//        }
//        if (!mLayoutRequesters.contains(view)) {
//            mLayoutRequesters.add(view);
//        }
//        if (!mHandlingLayoutInLayoutRequest) {
//            // Let the request proceed normally; it will be processed in a second layout pass
//            // if necessary
//            return true;
//        } else {
//            // Don't let the request proceed during the second layout pass.
//            // It will post to the next frame instead.
//            return false;
//        }
//    }
//
//    private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth,
//            int desiredWindowHeight) {
//        mLayoutRequested = false;
//        mScrollMayChange = true;
//        mInLayout = true;
//
//        final View host = mView;
//        if (DEBUG_ORIENTATION || DEBUG_LAYOUT) {
//            Log.v(TAG, "Laying out " + host + " to (" +
//                    host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")");
//        }
//
//        Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout");
//        try {
//            host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight());
//
//            mInLayout = false;
//            int numViewsRequestingLayout = mLayoutRequesters.size();
//            if (numViewsRequestingLayout > 0) {
//                // requestLayout() was called during layout.
//                // If no layout-request flags are set on the requesting views, there is no problem.
//                // If some requests are still pending, then we need to clear those flags and do
//                // a full request/measure/layout pass to handle this situation.
//                ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters,
//                        false);
//                if (validLayoutRequesters != null) {
//                    // Set this flag to indicate that any further requests are happening during
//                    // the second pass, which may result in posting those requests to the next
//                    // frame instead
//                    mHandlingLayoutInLayoutRequest = true;
//
//                    // Process fresh layout requests, then measure and layout
//                    int numValidRequests = validLayoutRequesters.size();
//                    for (int i = 0; i < numValidRequests; ++i) {
//                        final View view = validLayoutRequesters.get(i);
//                        Log.w("View", "requestLayout() improperly called by " + view +
//                                " during layout: running second layout pass");
//                        view.requestLayout();
//                    }
//                    measureHierarchy(host, lp, mView.getContext().getResources(),
//                            desiredWindowWidth, desiredWindowHeight);
//                    mInLayout = true;
//                    host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight());
//
//                    mHandlingLayoutInLayoutRequest = false;
//
//                    // Check the valid requests again, this time without checking/clearing the
//                    // layout flags, since requests happening during the second pass get noop'd
//                    validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true);
//                    if (validLayoutRequesters != null) {
//                        final ArrayList<View> finalRequesters = validLayoutRequesters;
//                        // Post second-pass requests to the next frame
//                        getRunQueue().post(new Runnable() {
//                            @Override
//                            public void run() {
//                                int numValidRequests = finalRequesters.size();
//                                for (int i = 0; i < numValidRequests; ++i) {
//                                    final View view = finalRequesters.get(i);
//                                    Log.w("View", "requestLayout() improperly called by " + view +
//                                            " during second layout pass: posting in next frame");
//                                    view.requestLayout();
//                                }
//                            }
//                        });
//                    }
//                }
//
//            }
//        } finally {
//            Trace.traceEnd(Trace.TRACE_TAG_VIEW);
//        }
//        mInLayout = false;
//    }
//
//    /**
//     * This method is called during layout when there have been calls to requestLayout() during
//     * layout. It walks through the list of views that requested layout to determine which ones
//     * still need it, based on visibility in the hierarchy and whether they have already been
//     * handled (as is usually the case with ListView children).
//     *
//     * @param layoutRequesters The list of views that requested layout during layout
//     * @param secondLayoutRequests Whether the requests were issued during the second layout pass.
//     * If so, the FORCE_LAYOUT flag was not set on requesters.
//     * @return A list of the actual views that still need to be laid out.
//     */
//    private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters,
//            boolean secondLayoutRequests) {
//
//        int numViewsRequestingLayout = layoutRequesters.size();
//        ArrayList<View> validLayoutRequesters = null;
//        for (int i = 0; i < numViewsRequestingLayout; ++i) {
//            View view = layoutRequesters.get(i);
//            if (view != null && view.mAttachInfo != null && view.mParent != null &&
//                    (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) ==
//                            View.PFLAG_FORCE_LAYOUT)) {
//                boolean gone = false;
//                View parent = view;
//                // Only trigger new requests for views in a non-GONE hierarchy
//                while (parent != null) {
//                    if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) {
//                        gone = true;
//                        break;
//                    }
//                    if (parent.mParent instanceof View) {
//                        parent = (View) parent.mParent;
//                    } else {
//                        parent = null;
//                    }
//                }
//                if (!gone) {
//                    if (validLayoutRequesters == null) {
//                        validLayoutRequesters = new ArrayList<View>();
//                    }
//                    validLayoutRequesters.add(view);
//                }
//            }
//        }
//        if (!secondLayoutRequests) {
//            // If we're checking the layout flags, then we need to clean them up also
//            for (int i = 0; i < numViewsRequestingLayout; ++i) {
//                View view = layoutRequesters.get(i);
//                while (view != null &&
//                        (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) {
//                    view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT;
//                    if (view.mParent instanceof View) {
//                        view = (View) view.mParent;
//                    } else {
//                        view = null;
//                    }
//                }
//            }
//        }
//        layoutRequesters.clear();
//        return validLayoutRequesters;
//    }
//
//    @Override
//    public void requestTransparentRegion(View child) {
//        // the test below should not fail unless someone is messing with us
//        checkThread();
//        if (mView == child) {
//            mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS;
//            // Need to make sure we re-evaluate the window attributes next
//            // time around, to ensure the window has the correct format.
//            mWindowAttributesChanged = true;
//            mWindowAttributesChangesFlag = 0;
//            requestLayout();
//        }
//    }
//
//    /**
//     * Figures out the measure spec for the root view in a window based on it's
//     * layout params.
//     *
//     * @param windowSize
//     *            The available width or height of the window
//     *
//     * @param rootDimension
//     *            The layout params for one dimension (width or height) of the
//     *            window.
//     *
//     * @return The measure spec to use to measure the root view.
//     */
//    private static int getRootMeasureSpec(int windowSize, int rootDimension) {
//        int measureSpec;
//        switch (rootDimension) {
//
//        case ViewGroup.LayoutParams.MATCH_PARENT:
//            // Window can't resize. Force root view to be windowSize.
//            measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY);
//            break;
//        case ViewGroup.LayoutParams.WRAP_CONTENT:
//            // Window can resize. Set max size for root view.
//            measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST);
//            break;
//        default:
//            // Window wants to be an exact size. Force root view to be that size.
//            measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY);
//            break;
//        }
//        return measureSpec;
//    }
//
//    int mHardwareXOffset;
//    int mHardwareYOffset;
//    int mResizeAlpha;
//    final Paint mResizePaint = new Paint();
//
//    @Override
//    public void onHardwarePreDraw(DisplayListCanvas canvas) {
//        canvas.translate(-mHardwareXOffset, -mHardwareYOffset);
//    }
//
//    @Override
//    public void onHardwarePostDraw(DisplayListCanvas canvas) {
//        if (mResizeBuffer != null) {
//            mResizePaint.setAlpha(mResizeAlpha);
//            canvas.drawHardwareLayer(mResizeBuffer, mHardwareXOffset, mHardwareYOffset,
//                    mResizePaint);
//        }
//        drawAccessibilityFocusedDrawableIfNeeded(canvas);
//    }
//
//    /**
//     * @hide
//     */
//    void outputDisplayList(View view) {
//        view.mRenderNode.output();
//    }
//
//    /**
//     * @see #PROPERTY_PROFILE_RENDERING
//     */
//    private void profileRendering(boolean enabled) {
//        if (mProfileRendering) {
//            mRenderProfilingEnabled = enabled;
//
//            if (mRenderProfiler != null) {
//                mChoreographer.removeFrameCallback(mRenderProfiler);
//            }
//            if (mRenderProfilingEnabled) {
//                if (mRenderProfiler == null) {
//                    mRenderProfiler = new Choreographer.FrameCallback() {
//                        @Override
//                        public void doFrame(long frameTimeNanos) {
//                            mDirty.set(0, 0, mWidth, mHeight);
//                            scheduleTraversals();
//                            if (mRenderProfilingEnabled) {
//                                mChoreographer.postFrameCallback(mRenderProfiler);
//                            }
//                        }
//                    };
//                }
//                mChoreographer.postFrameCallback(mRenderProfiler);
//            } else {
//                mRenderProfiler = null;
//            }
//        }
//    }
//
//    /**
//     * Called from draw() when DEBUG_FPS is enabled
//     */
//    private void trackFPS() {
//        // Tracks frames per second drawn. First value in a series of draws may be bogus
//        // because it down not account for the intervening idle time
//        long nowTime = System.currentTimeMillis();
//        if (mFpsStartTime < 0) {
//            mFpsStartTime = mFpsPrevTime = nowTime;
//            mFpsNumFrames = 0;
//        } else {
//            ++mFpsNumFrames;
//            String thisHash = Integer.toHexString(System.identityHashCode(this));
//            long frameTime = nowTime - mFpsPrevTime;
//            long totalTime = nowTime - mFpsStartTime;
//            Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime);
//            mFpsPrevTime = nowTime;
//            if (totalTime > 1000) {
//                float fps = (float) mFpsNumFrames * 1000 / totalTime;
//                Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps);
//                mFpsStartTime = nowTime;
//                mFpsNumFrames = 0;
//            }
//        }
//    }
//
//    private void performDraw() {
//        if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) {
//            return;
//        }
//
//        final boolean fullRedrawNeeded = mFullRedrawNeeded;
//        mFullRedrawNeeded = false;
//
//        mIsDrawing = true;
//        Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw");
//        try {
//            draw(fullRedrawNeeded);
//        } finally {
//            mIsDrawing = false;
//            Trace.traceEnd(Trace.TRACE_TAG_VIEW);
//        }
//
//        // For whatever reason we didn't create a HardwareRenderer, end any
//        // hardware animations that are now dangling
//        if (mAttachInfo.mPendingAnimatingRenderNodes != null) {
//            final int count = mAttachInfo.mPendingAnimatingRenderNodes.size();
//            for (int i = 0; i < count; i++) {
//                mAttachInfo.mPendingAnimatingRenderNodes.get(i).endAllAnimators();
//            }
//            mAttachInfo.mPendingAnimatingRenderNodes.clear();
//        }
//
//        if (mReportNextDraw) {
//            mReportNextDraw = false;
//            if (mAttachInfo.mHardwareRenderer != null) {
//                mAttachInfo.mHardwareRenderer.fence();
//            }
//
//            if (LOCAL_LOGV) {
//                Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle());
//            }
//            if (mSurfaceHolder != null && mSurface.isValid()) {
//                mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder);
//                SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks();
//                if (callbacks != null) {
//                    for (SurfaceHolder.Callback c : callbacks) {
//                        if (c instanceof SurfaceHolder.Callback2) {
//                            ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded(
//                                    mSurfaceHolder);
//                        }
//                    }
//                }
//            }
//            try {
//                mWindowSession.finishDrawing(mWindow);
//            } catch (RemoteException e) {
//            }
//        }
//    }
//
//    private void draw(boolean fullRedrawNeeded) {
//        Surface surface = mSurface;
//        if (!surface.isValid()) {
//            return;
//        }
//
//        if (DEBUG_FPS) {
//            trackFPS();
//        }
//
//        if (!sFirstDrawComplete) {
//            synchronized (sFirstDrawHandlers) {
//                sFirstDrawComplete = true;
//                final int count = sFirstDrawHandlers.size();
//                for (int i = 0; i< count; i++) {
//                    mHandler.post(sFirstDrawHandlers.get(i));
//                }
//            }
//        }
//
//        scrollToRectOrFocus(null, false);
//
//        if (mAttachInfo.mViewScrollChanged) {
//            mAttachInfo.mViewScrollChanged = false;
//            mAttachInfo.mTreeObserver.dispatchOnScrollChanged();
//        }
//
//        boolean animating = mScroller != null && mScroller.computeScrollOffset();
//        final int curScrollY;
//        if (animating) {
//            curScrollY = mScroller.getCurrY();
//        } else {
//            curScrollY = mScrollY;
//        }
//        if (mCurScrollY != curScrollY) {
//            mCurScrollY = curScrollY;
//            fullRedrawNeeded = true;
//            if (mView instanceof RootViewSurfaceTaker) {
//                ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY);
//            }
//        }
//
//        final float appScale = mAttachInfo.mApplicationScale;
//        final boolean scalingRequired = mAttachInfo.mScalingRequired;
//
//        int resizeAlpha = 0;
//        if (mResizeBuffer != null) {
//            long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime;
//            if (deltaTime < mResizeBufferDuration) {
//                float amt = deltaTime/(float) mResizeBufferDuration;
//                amt = mResizeInterpolator.getInterpolation(amt);
//                animating = true;
//                resizeAlpha = 255 - (int)(amt*255);
//            } else {
//                disposeResizeBuffer();
//            }
//        }
//
//        final Rect dirty = mDirty;
//        if (mSurfaceHolder != null) {
//            // The app owns the surface, we won't draw.
//            dirty.setEmpty();
//            if (animating) {
//                if (mScroller != null) {
//                    mScroller.abortAnimation();
//                }
//                disposeResizeBuffer();
//            }
//            return;
//        }
//
//        if (fullRedrawNeeded) {
//            mAttachInfo.mIgnoreDirtyState = true;
//            dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f));
//        }
//
//        if (DEBUG_ORIENTATION || DEBUG_DRAW) {
//            Log.v(TAG, "Draw " + mView + "/"
//                    + mWindowAttributes.getTitle()
//                    + ": dirty={" + dirty.left + "," + dirty.top
//                    + "," + dirty.right + "," + dirty.bottom + "} surface="
//                    + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" +
//                    appScale + ", width=" + mWidth + ", height=" + mHeight);
//        }
//
//        mAttachInfo.mTreeObserver.dispatchOnDraw();
//
//        int xOffset = 0;
//        int yOffset = curScrollY;
//        final WindowManager.LayoutParams params = mWindowAttributes;
//        final Rect surfaceInsets = params != null ? params.surfaceInsets : null;
//        if (surfaceInsets != null) {
//            xOffset -= surfaceInsets.left;
//            yOffset -= surfaceInsets.top;
//
//            // Offset dirty rect for surface insets.
//            dirty.offset(surfaceInsets.left, surfaceInsets.right);
//        }
//
//        boolean accessibilityFocusDirty = false;
//        final Drawable drawable = mAttachInfo.mAccessibilityFocusDrawable;
//        if (drawable != null) {
//            final Rect bounds = mAttachInfo.mTmpInvalRect;
//            final boolean hasFocus = getAccessibilityFocusedRect(bounds);
//            if (!hasFocus) {
//                bounds.setEmpty();
//            }
//            if (!bounds.equals(drawable.getBounds())) {
//                accessibilityFocusDirty = true;
//            }
//        }
//
//        mAttachInfo.mDrawingTime =
//                mChoreographer.getFrameTimeNanos() / TimeUtils.NANOS_PER_MS;
//
//        if (!dirty.isEmpty() || mIsAnimating || accessibilityFocusDirty) {
//            if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) {
//                // If accessibility focus moved, always invalidate the root.
//                boolean invalidateRoot = accessibilityFocusDirty;
//
//                // Draw with hardware renderer.
//                mIsAnimating = false;
//
//                if (mHardwareYOffset != yOffset || mHardwareXOffset != xOffset) {
//                    mHardwareYOffset = yOffset;
//                    mHardwareXOffset = xOffset;
//                    invalidateRoot = true;
//                }
//                mResizeAlpha = resizeAlpha;
//
//                if (invalidateRoot) {
//                    mAttachInfo.mHardwareRenderer.invalidateRoot();
//                }
//
//                dirty.setEmpty();
//
//                mBlockResizeBuffer = false;
//                mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this);
//            } else {
//                // If we get here with a disabled & requested hardware renderer, something went
//                // wrong (an invalidate posted right before we destroyed the hardware surface
//                // for instance) so we should just bail out. Locking the surface with software
//                // rendering at this point would lock it forever and prevent hardware renderer
//                // from doing its job when it comes back.
//                // Before we request a new frame we must however attempt to reinitiliaze the
//                // hardware renderer if it's in requested state. This would happen after an
//                // eglTerminate() for instance.
//                if (mAttachInfo.mHardwareRenderer != null &&
//                        !mAttachInfo.mHardwareRenderer.isEnabled() &&
//                        mAttachInfo.mHardwareRenderer.isRequested()) {
//
//                    try {
//                        mAttachInfo.mHardwareRenderer.initializeIfNeeded(
//                                mWidth, mHeight, mAttachInfo, mSurface, surfaceInsets);
//                    } catch (OutOfResourcesException e) {
//                        handleOutOfResourcesException(e);
//                        return;
//                    }
//
//                    mFullRedrawNeeded = true;
//                    scheduleTraversals();
//                    return;
//                }
//
//                if (!drawSoftware(surface, mAttachInfo, xOffset, yOffset, scalingRequired, dirty)) {
//                    return;
//                }
//            }
//        }
//
//        if (animating) {
//            mFullRedrawNeeded = true;
//            scheduleTraversals();
//        }
//    }
//
//    /**
//     * @return true if drawing was successful, false if an error occurred
//     */
//    private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int xoff, int yoff,
//            boolean scalingRequired, Rect dirty) {
//
//        // Draw with software renderer.
//        final Canvas canvas;
//        try {
//            final int left = dirty.left;
//            final int top = dirty.top;
//            final int right = dirty.right;
//            final int bottom = dirty.bottom;
//
//            canvas = mSurface.lockCanvas(dirty);
//
//            // The dirty rectangle can be modified by Surface.lockCanvas()
//            //noinspection ConstantConditions
//            if (left != dirty.left || top != dirty.top || right != dirty.right
//                    || bottom != dirty.bottom) {
//                attachInfo.mIgnoreDirtyState = true;
//            }
//
//            // TODO: Do this in native
//            canvas.setDensity(mDensity);
//        } catch (OutOfResourcesException e) {
//            handleOutOfResourcesException(e);
//            return false;
//        } catch (IllegalArgumentException e) {
//            Log.e(TAG, "Could not lock surface", e);
//            // Don't assume this is due to out of memory, it could be
//            // something else, and if it is something else then we could
//            // kill stuff (or ourself) for no reason.
//            mLayoutRequested = true;    // ask wm for a new surface next time.
//            return false;
//        }
//
//        try {
//            if (DEBUG_ORIENTATION || DEBUG_DRAW) {
//                Log.v(TAG, "Surface " + surface + " drawing to bitmap w="
//                        + canvas.getWidth() + ", h=" + canvas.getHeight());
//                //canvas.drawARGB(255, 255, 0, 0);
//            }
//
//            // If this bitmap's format includes an alpha channel, we
//            // need to clear it before drawing so that the child will
//            // properly re-composite its drawing on a transparent
//            // background. This automatically respects the clip/dirty region
//            // or
//            // If we are applying an offset, we need to clear the area
//            // where the offset doesn't appear to avoid having garbage
//            // left in the blank areas.
//            if (!canvas.isOpaque() || yoff != 0 || xoff != 0) {
//                canvas.drawColor(0, PorterDuff.Mode.CLEAR);
//            }
//
//            dirty.setEmpty();
//            mIsAnimating = false;
//            mView.mPrivateFlags |= View.PFLAG_DRAWN;
//
//            if (DEBUG_DRAW) {
//                Context cxt = mView.getContext();
//                Log.i(TAG, "Drawing: package:" + cxt.getPackageName() +
//                        ", metrics=" + cxt.getResources().getDisplayMetrics() +
//                        ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo());
//            }
//            try {
//                canvas.translate(-xoff, -yoff);
//                if (mTranslator != null) {
//                    mTranslator.translateCanvas(canvas);
//                }
//                canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0);
//                attachInfo.mSetIgnoreDirtyState = false;
//
//                mView.draw(canvas);
//
//                drawAccessibilityFocusedDrawableIfNeeded(canvas);
//            } finally {
//                if (!attachInfo.mSetIgnoreDirtyState) {
//                    // Only clear the flag if it was not set during the mView.draw() call
//                    attachInfo.mIgnoreDirtyState = false;
//                }
//            }
//        } finally {
//            try {
//                surface.unlockCanvasAndPost(canvas);
//            } catch (IllegalArgumentException e) {
//                Log.e(TAG, "Could not unlock surface", e);
//                mLayoutRequested = true;    // ask wm for a new surface next time.
//                //noinspection ReturnInsideFinallyBlock
//                return false;
//            }
//
//            if (LOCAL_LOGV) {
//                Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost");
//            }
//        }
//        return true;
//    }
//
//    /**
//     * We want to draw a highlight around the current accessibility focused.
//     * Since adding a style for all possible view is not a viable option we
//     * have this specialized drawing method.
//     *
//     * Note: We are doing this here to be able to draw the highlight for
//     *       virtual views in addition to real ones.
//     *
//     * @param canvas The canvas on which to draw.
//     */
//    private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) {
//        final Rect bounds = mAttachInfo.mTmpInvalRect;
//        if (getAccessibilityFocusedRect(bounds)) {
//            final Drawable drawable = getAccessibilityFocusedDrawable();
//            if (drawable != null) {
//                drawable.setBounds(bounds);
//                drawable.draw(canvas);
//            }
//        } else if (mAttachInfo.mAccessibilityFocusDrawable != null) {
//            mAttachInfo.mAccessibilityFocusDrawable.setBounds(0, 0, 0, 0);
//        }
//    }
//
//    private boolean getAccessibilityFocusedRect(Rect bounds) {
//        final AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext);
//        if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) {
//            return false;
//        }
//
//        final View host = mAccessibilityFocusedHost;
//        if (host == null || host.mAttachInfo == null) {
//            return false;
//        }
//
//        final AccessibilityNodeProvider provider = host.getAccessibilityNodeProvider();
//        if (provider == null) {
//            host.getBoundsOnScreen(bounds, true);
//        } else if (mAccessibilityFocusedVirtualView != null) {
//            mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds);
//        } else {
//            return false;
//        }
//
//        // Transform the rect into window-relative coordinates.
//        final AttachInfo attachInfo = mAttachInfo;
//        bounds.offset(0, attachInfo.mViewRootImpl.mScrollY);
//        bounds.offset(-attachInfo.mWindowLeft, -attachInfo.mWindowTop);
//        if (!bounds.intersect(0, 0, attachInfo.mViewRootImpl.mWidth,
//                attachInfo.mViewRootImpl.mHeight)) {
//            // If no intersection, set bounds to empty.
//            bounds.setEmpty();
//        }
//        return !bounds.isEmpty();
//    }
//
//    private Drawable getAccessibilityFocusedDrawable() {
//        // Lazily load the accessibility focus drawable.
//        if (mAttachInfo.mAccessibilityFocusDrawable == null) {
//            final TypedValue value = new TypedValue();
//            final boolean resolved = mView.mContext.getTheme().resolveAttribute(
//                    R.attr.accessibilityFocusedDrawable, value, true);
//            if (resolved) {
//                mAttachInfo.mAccessibilityFocusDrawable =
//                        mView.mContext.getDrawable(value.resourceId);
//            }
//        }
//        return mAttachInfo.mAccessibilityFocusDrawable;
//    }
//
//    /**
//     * @hide
//     */
//    public void setDrawDuringWindowsAnimating(boolean value) {
//        mDrawDuringWindowsAnimating = value;
//        if (value) {
//            handleDispatchWindowAnimationStopped();
//        }
//    }
//
//    boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) {
//        final Rect ci = mAttachInfo.mContentInsets;
//        final Rect vi = mAttachInfo.mVisibleInsets;
//        int scrollY = 0;
//        boolean handled = false;
//
//        if (vi.left > ci.left || vi.top > ci.top
//                || vi.right > ci.right || vi.bottom > ci.bottom) {
//            // We'll assume that we aren't going to change the scroll
//            // offset, since we want to avoid that unless it is actually
//            // going to make the focus visible...  otherwise we scroll
//            // all over the place.
//            scrollY = mScrollY;
//            // We can be called for two different situations: during a draw,
//            // to update the scroll position if the focus has changed (in which
//            // case 'rectangle' is null), or in response to a
//            // requestChildRectangleOnScreen() call (in which case 'rectangle'
//            // is non-null and we just want to scroll to whatever that
//            // rectangle is).
//            final View focus = mView.findFocus();
//            if (focus == null) {
//                return false;
//            }
//            View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null;
//            if (focus != lastScrolledFocus) {
//                // If the focus has changed, then ignore any requests to scroll
//                // to a rectangle; first we want to make sure the entire focus
//                // view is visible.
//                rectangle = null;
//            }
//            if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus
//                    + " rectangle=" + rectangle + " ci=" + ci
//                    + " vi=" + vi);
//            if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) {
//                // Optimization: if the focus hasn't changed since last
//                // time, and no layout has happened, then just leave things
//                // as they are.
//                if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y="
//                        + mScrollY + " vi=" + vi.toShortString());
//            } else {
//                // We need to determine if the currently focused view is
//                // within the visible part of the window and, if not, apply
//                // a pan so it can be seen.
//                mLastScrolledFocus = new WeakReference<View>(focus);
//                mScrollMayChange = false;
//                if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?");
//                // Try to find the rectangle from the focus view.
//                if (focus.getGlobalVisibleRect(mVisRect, null)) {
//                    if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w="
//                            + mView.getWidth() + " h=" + mView.getHeight()
//                            + " ci=" + ci.toShortString()
//                            + " vi=" + vi.toShortString());
//                    if (rectangle == null) {
//                        focus.getFocusedRect(mTempRect);
//                        if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus
//                                + ": focusRect=" + mTempRect.toShortString());
//                        if (mView instanceof ViewGroup) {
//                            ((ViewGroup) mView).offsetDescendantRectToMyCoords(
//                                    focus, mTempRect);
//                        }
//                        if (DEBUG_INPUT_RESIZE) Log.v(TAG,
//                                "Focus in window: focusRect="
//                                + mTempRect.toShortString()
//                                + " visRect=" + mVisRect.toShortString());
//                    } else {
//                        mTempRect.set(rectangle);
//                        if (DEBUG_INPUT_RESIZE) Log.v(TAG,
//                                "Request scroll to rect: "
//                                + mTempRect.toShortString()
//                                + " visRect=" + mVisRect.toShortString());
//                    }
//                    if (mTempRect.intersect(mVisRect)) {
//                        if (DEBUG_INPUT_RESIZE) Log.v(TAG,
//                                "Focus window visible rect: "
//                                + mTempRect.toShortString());
//                        if (mTempRect.height() >
//                                (mView.getHeight()-vi.top-vi.bottom)) {
//                            // If the focus simply is not going to fit, then
//                            // best is probably just to leave things as-is.
//                            if (DEBUG_INPUT_RESIZE) Log.v(TAG,
//                                    "Too tall; leaving scrollY=" + scrollY);
//                        } else if ((mTempRect.top-scrollY) < vi.top) {
//                            scrollY -= vi.top - (mTempRect.top-scrollY);
//                            if (DEBUG_INPUT_RESIZE) Log.v(TAG,
//                                    "Top covered; scrollY=" + scrollY);
//                        } else if ((mTempRect.bottom-scrollY)
//                                > (mView.getHeight()-vi.bottom)) {
//                            scrollY += (mTempRect.bottom-scrollY)
//                                    - (mView.getHeight()-vi.bottom);
//                            if (DEBUG_INPUT_RESIZE) Log.v(TAG,
//                                    "Bottom covered; scrollY=" + scrollY);
//                        }
//                        handled = true;
//                    }
//                }
//            }
//        }
//
//        if (scrollY != mScrollY) {
//            if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old="
//                    + mScrollY + " , new=" + scrollY);
//            if (!immediate && mResizeBuffer == null) {
//                if (mScroller == null) {
//                    mScroller = new Scroller(mView.getContext());
//                }
//                mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY);
//            } else if (mScroller != null) {
//                mScroller.abortAnimation();
//            }
//            mScrollY = scrollY;
//        }
//
//        return handled;
//    }
//
//    /**
//     * @hide
//     */
//    public View getAccessibilityFocusedHost() {
//        return mAccessibilityFocusedHost;
//    }
//
//    /**
//     * @hide
//     */
//    public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() {
//        return mAccessibilityFocusedVirtualView;
//    }
//
//    void setAccessibilityFocus(View view, AccessibilityNodeInfo node) {
//        // If we have a virtual view with accessibility focus we need
//        // to clear the focus and invalidate the virtual view bounds.
//        if (mAccessibilityFocusedVirtualView != null) {
//
//            AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView;
//            View focusHost = mAccessibilityFocusedHost;
//
//            // Wipe the state of the current accessibility focus since
//            // the call into the provider to clear accessibility focus
//            // will fire an accessibility event which will end up calling
//            // this method and we want to have clean state when this
//            // invocation happens.
//            mAccessibilityFocusedHost = null;
//            mAccessibilityFocusedVirtualView = null;
//
//            // Clear accessibility focus on the host after clearing state since
//            // this method may be reentrant.
//            focusHost.clearAccessibilityFocusNoCallbacks();
//
//            AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider();
//            if (provider != null) {
//                // Invalidate the area of the cleared accessibility focus.
//                focusNode.getBoundsInParent(mTempRect);
//                focusHost.invalidate(mTempRect);
//                // Clear accessibility focus in the virtual node.
//                final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId(
//                        focusNode.getSourceNodeId());
//                provider.performAction(virtualNodeId,
//                        AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null);
//            }
//            focusNode.recycle();
//        }
//        if (mAccessibilityFocusedHost != null) {
//            // Clear accessibility focus in the view.
//            mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks();
//        }
//
//        // Set the new focus host and node.
//        mAccessibilityFocusedHost = view;
//        mAccessibilityFocusedVirtualView = node;
//
//        if (mAttachInfo.mHardwareRenderer != null) {
//            mAttachInfo.mHardwareRenderer.invalidateRoot();
//        }
//    }
//
//    @Override
//    public void requestChildFocus(View child, View focused) {
//        if (DEBUG_INPUT_RESIZE) {
//            Log.v(TAG, "Request child focus: focus now " + focused);
//        }
//        checkThread();
//        scheduleTraversals();
//    }
//
//    @Override
//    public void clearChildFocus(View child) {
//        if (DEBUG_INPUT_RESIZE) {
//            Log.v(TAG, "Clearing child focus");
//        }
//        checkThread();
//        scheduleTraversals();
//    }
//
//    @Override
//    public ViewParent getParentForAccessibility() {
//        return null;
//    }
//
//    @Override
//    public void focusableViewAvailable(View v) {
//        checkThread();
//        if (mView != null) {
//            if (!mView.hasFocus()) {
//                v.requestFocus();
//            } else {
//                // the one case where will transfer focus away from the current one
//                // is if the current view is a view group that prefers to give focus
//                // to its children first AND the view is a descendant of it.
//                View focused = mView.findFocus();
//                if (focused instanceof ViewGroup) {
//                    ViewGroup group = (ViewGroup) focused;
//                    if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS
//                            && isViewDescendantOf(v, focused)) {
//                        v.requestFocus();
//                    }
//                }
//            }
//        }
//    }
//
//    @Override
//    public void recomputeViewAttributes(View child) {
//        checkThread();
//        if (mView == child) {
//            mAttachInfo.mRecomputeGlobalAttributes = true;
//            if (!mWillDrawSoon) {
//                scheduleTraversals();
//            }
//        }
//    }
//
//    void dispatchDetachedFromWindow() {
//        if (mView != null && mView.mAttachInfo != null) {
//            mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false);
//            mView.dispatchDetachedFromWindow();
//        }
//
//        mAccessibilityInteractionConnectionManager.ensureNoConnection();
//        mAccessibilityManager.removeAccessibilityStateChangeListener(
//                mAccessibilityInteractionConnectionManager);
//        mAccessibilityManager.removeHighTextContrastStateChangeListener(
//                mHighContrastTextManager);
//        removeSendWindowContentChangedCallback();
//
//        destroyHardwareRenderer();
//
//        setAccessibilityFocus(null, null);
//
//        mView.assignParent(null);
//        mView = null;
//        mAttachInfo.mRootView = null;
//
//        mSurface.release();
//
//        if (mInputQueueCallback != null && mInputQueue != null) {
//            mInputQueueCallback.onInputQueueDestroyed(mInputQueue);
//            mInputQueue.dispose();
//            mInputQueueCallback = null;
//            mInputQueue = null;
//        }
//        if (mInputEventReceiver != null) {
//            mInputEventReceiver.dispose();
//            mInputEventReceiver = null;
//        }
//        try {
//            mWindowSession.remove(mWindow);
//        } catch (RemoteException e) {
//        }
//
//        // Dispose the input channel after removing the window so the Window Manager
//        // doesn't interpret the input channel being closed as an abnormal termination.
//        if (mInputChannel != null) {
//            mInputChannel.dispose();
//            mInputChannel = null;
//        }
//
//        mDisplayManager.unregisterDisplayListener(mDisplayListener);
//
//        unscheduleTraversals();
//    }
//
//    void updateConfiguration(Configuration config, boolean force) {
//        if (DEBUG_CONFIGURATION) Log.v(TAG,
//                "Applying new config to window "
//                + mWindowAttributes.getTitle()
//                + ": " + config);
//
//        CompatibilityInfo ci = mDisplayAdjustments.getCompatibilityInfo();
//        if (!ci.equals(CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO)) {
//            config = new Configuration(config);
//            ci.applyToConfiguration(mNoncompatDensity, config);
//        }
//
//        synchronized (sConfigCallbacks) {
//            for (int i=sConfigCallbacks.size()-1; i>=0; i--) {
//                sConfigCallbacks.get(i).onConfigurationChanged(config);
//            }
//        }
//        if (mView != null) {
//            // At this point the resources have been updated to
//            // have the most recent config, whatever that is.  Use
//            // the one in them which may be newer.
//            config = mView.getResources().getConfiguration();
//            if (force || mLastConfiguration.diff(config) != 0) {
//                final int lastLayoutDirection = mLastConfiguration.getLayoutDirection();
//                final int currentLayoutDirection = config.getLayoutDirection();
//                mLastConfiguration.setTo(config);
//                if (lastLayoutDirection != currentLayoutDirection &&
//                        mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) {
//                    mView.setLayoutDirection(currentLayoutDirection);
//                }
//                mView.dispatchConfigurationChanged(config);
//            }
//        }
//    }
//
//    /**
//     * Return true if child is an ancestor of parent, (or equal to the parent).
//     */
//    public static boolean isViewDescendantOf(View child, View parent) {
//        if (child == parent) {
//            return true;
//        }
//
//        final ViewParent theParent = child.getParent();
//        return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent);
//    }
//
//    private static void forceLayout(View view) {
//        view.forceLayout();
//        if (view instanceof ViewGroup) {
//            ViewGroup group = (ViewGroup) view;
//            final int count = group.getChildCount();
//            for (int i = 0; i < count; i++) {
//                forceLayout(group.getChildAt(i));
//            }
//        }
//    }
//
//    private final static int MSG_INVALIDATE = 1;
//    private final static int MSG_INVALIDATE_RECT = 2;
//    private final static int MSG_DIE = 3;
//    private final static int MSG_RESIZED = 4;
//    private final static int MSG_RESIZED_REPORT = 5;
//    private final static int MSG_WINDOW_FOCUS_CHANGED = 6;
//    private final static int MSG_DISPATCH_INPUT_EVENT = 7;
//    private final static int MSG_DISPATCH_APP_VISIBILITY = 8;
//    private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9;
//    private final static int MSG_DISPATCH_KEY_FROM_IME = 11;
//    private final static int MSG_FINISH_INPUT_CONNECTION = 12;
//    private final static int MSG_CHECK_FOCUS = 13;
//    private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14;
//    private final static int MSG_DISPATCH_DRAG_EVENT = 15;
//    private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16;
//    private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17;
//    private final static int MSG_UPDATE_CONFIGURATION = 18;
//    private final static int MSG_PROCESS_INPUT_EVENTS = 19;
//    private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21;
//    private final static int MSG_INVALIDATE_WORLD = 22;
//    private final static int MSG_WINDOW_MOVED = 23;
//    private final static int MSG_SYNTHESIZE_INPUT_EVENT = 24;
//    private final static int MSG_DISPATCH_WINDOW_SHOWN = 25;
//    private final static int MSG_DISPATCH_WINDOW_ANIMATION_STOPPED = 26;
//    private final static int MSG_DISPATCH_WINDOW_ANIMATION_STARTED = 27;
//
//    final class ViewRootHandler extends Handler {
//        @Override
//        public String getMessageName(Message message) {
//            switch (message.what) {
//                case MSG_INVALIDATE:
//                    return "MSG_INVALIDATE";
//                case MSG_INVALIDATE_RECT:
//                    return "MSG_INVALIDATE_RECT";
//                case MSG_DIE:
//                    return "MSG_DIE";
//                case MSG_RESIZED:
//                    return "MSG_RESIZED";
//                case MSG_RESIZED_REPORT:
//                    return "MSG_RESIZED_REPORT";
//                case MSG_WINDOW_FOCUS_CHANGED:
//                    return "MSG_WINDOW_FOCUS_CHANGED";
//                case MSG_DISPATCH_INPUT_EVENT:
//                    return "MSG_DISPATCH_INPUT_EVENT";
//                case MSG_DISPATCH_APP_VISIBILITY:
//                    return "MSG_DISPATCH_APP_VISIBILITY";
//                case MSG_DISPATCH_GET_NEW_SURFACE:
//                    return "MSG_DISPATCH_GET_NEW_SURFACE";
//                case MSG_DISPATCH_KEY_FROM_IME:
//                    return "MSG_DISPATCH_KEY_FROM_IME";
//                case MSG_FINISH_INPUT_CONNECTION:
//                    return "MSG_FINISH_INPUT_CONNECTION";
//                case MSG_CHECK_FOCUS:
//                    return "MSG_CHECK_FOCUS";
//                case MSG_CLOSE_SYSTEM_DIALOGS:
//                    return "MSG_CLOSE_SYSTEM_DIALOGS";
//                case MSG_DISPATCH_DRAG_EVENT:
//                    return "MSG_DISPATCH_DRAG_EVENT";
//                case MSG_DISPATCH_DRAG_LOCATION_EVENT:
//                    return "MSG_DISPATCH_DRAG_LOCATION_EVENT";
//                case MSG_DISPATCH_SYSTEM_UI_VISIBILITY:
//                    return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY";
//                case MSG_UPDATE_CONFIGURATION:
//                    return "MSG_UPDATE_CONFIGURATION";
//                case MSG_PROCESS_INPUT_EVENTS:
//                    return "MSG_PROCESS_INPUT_EVENTS";
//                case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST:
//                    return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST";
//                case MSG_DISPATCH_WINDOW_ANIMATION_STARTED:
//                    return "MSG_DISPATCH_WINDOW_ANIMATION_STARTED";
//                case MSG_DISPATCH_WINDOW_ANIMATION_STOPPED:
//                    return "MSG_DISPATCH_WINDOW_ANIMATION_STOPPED";
//                case MSG_WINDOW_MOVED:
//                    return "MSG_WINDOW_MOVED";
//                case MSG_SYNTHESIZE_INPUT_EVENT:
//                    return "MSG_SYNTHESIZE_INPUT_EVENT";
//                case MSG_DISPATCH_WINDOW_SHOWN:
//                    return "MSG_DISPATCH_WINDOW_SHOWN";
//            }
//            return super.getMessageName(message);
//        }
//
//        @Override
//        public void handleMessage(Message msg) {
//            switch (msg.what) {
//            case MSG_INVALIDATE:
//                ((View) msg.obj).invalidate();
//                break;
//            case MSG_INVALIDATE_RECT:
//                final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj;
//                info.target.invalidate(info.left, info.top, info.right, info.bottom);
//                info.recycle();
//                break;
//            case MSG_PROCESS_INPUT_EVENTS:
//                mProcessInputEventsScheduled = false;
//                doProcessInputEvents();
//                break;
//            case MSG_DISPATCH_APP_VISIBILITY:
//                handleAppVisibility(msg.arg1 != 0);
//                break;
//            case MSG_DISPATCH_GET_NEW_SURFACE:
//                handleGetNewSurface();
//                break;
//            case MSG_RESIZED: {
//                // Recycled in the fall through...
//                SomeArgs args = (SomeArgs) msg.obj;
//                if (mWinFrame.equals(args.arg1)
//                        && mPendingOverscanInsets.equals(args.arg5)
//                        && mPendingContentInsets.equals(args.arg2)
//                        && mPendingStableInsets.equals(args.arg6)
//                        && mPendingVisibleInsets.equals(args.arg3)
//                        && mPendingOutsets.equals(args.arg7)
//                        && args.arg4 == null) {
//                    break;
//                }
//                } // fall through...
//            case MSG_RESIZED_REPORT:
//                if (mAdded) {
//                    SomeArgs args = (SomeArgs) msg.obj;
//
//                    Configuration config = (Configuration) args.arg4;
//                    if (config != null) {
//                        updateConfiguration(config, false);
//                    }
//
//                    mWinFrame.set((Rect) args.arg1);
//                    mPendingOverscanInsets.set((Rect) args.arg5);
//                    mPendingContentInsets.set((Rect) args.arg2);
//                    mPendingStableInsets.set((Rect) args.arg6);
//                    mPendingVisibleInsets.set((Rect) args.arg3);
//                    mPendingOutsets.set((Rect) args.arg7);
//
//                    args.recycle();
//
//                    if (msg.what == MSG_RESIZED_REPORT) {
//                        mReportNextDraw = true;
//                    }
//
//                    if (mView != null) {
//                        forceLayout(mView);
//                    }
//
//                    requestLayout();
//                }
//                break;
//            case MSG_WINDOW_MOVED:
//                if (mAdded) {
//                    final int w = mWinFrame.width();
//                    final int h = mWinFrame.height();
//                    final int l = msg.arg1;
//                    final int t = msg.arg2;
//                    mWinFrame.left = l;
//                    mWinFrame.right = l + w;
//                    mWinFrame.top = t;
//                    mWinFrame.bottom = t + h;
//
//                    if (mView != null) {
//                        forceLayout(mView);
//                    }
//                    requestLayout();
//                }
//                break;
//            case MSG_WINDOW_FOCUS_CHANGED: {
//                if (mAdded) {
//                    boolean hasWindowFocus = msg.arg1 != 0;
//                    mAttachInfo.mHasWindowFocus = hasWindowFocus;
//
//                    profileRendering(hasWindowFocus);
//
//                    if (hasWindowFocus) {
//                        boolean inTouchMode = msg.arg2 != 0;
//                        ensureTouchModeLocally(inTouchMode);
//
//                        if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){
//                            mFullRedrawNeeded = true;
//                            try {
//                                final WindowManager.LayoutParams lp = mWindowAttributes;
//                                final Rect surfaceInsets = lp != null ? lp.surfaceInsets : null;
//                                mAttachInfo.mHardwareRenderer.initializeIfNeeded(
//                                        mWidth, mHeight, mAttachInfo, mSurface, surfaceInsets);
//                            } catch (OutOfResourcesException e) {
//                                Log.e(TAG, "OutOfResourcesException locking surface", e);
//                                try {
//                                    if (!mWindowSession.outOfMemory(mWindow)) {
//                                        Slog.w(TAG, "No processes killed for memory; killing self");
//                                        Process.killProcess(Process.myPid());
//                                    }
//                                } catch (RemoteException ex) {
//                                }
//                                // Retry in a bit.
//                                sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500);
//                                return;
//                            }
//                        }
//                    }
//
//                    mLastWasImTarget = WindowManager.LayoutParams
//                            .mayUseInputMethod(mWindowAttributes.flags);
//
//                    InputMethodManager imm = InputMethodManager.peekInstance();
//                    if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) {
//                        imm.onPreWindowFocus(mView, hasWindowFocus);
//                    }
//                    if (mView != null) {
//                        mAttachInfo.mKeyDispatchState.reset();
//                        mView.dispatchWindowFocusChanged(hasWindowFocus);
//                        mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus);
//                    }
//
//                    // Note: must be done after the focus change callbacks,
//                    // so all of the view state is set up correctly.
//                    if (hasWindowFocus) {
//                        if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) {
//                            imm.onPostWindowFocus(mView, mView.findFocus(),
//                                    mWindowAttributes.softInputMode,
//                                    !mHasHadWindowFocus, mWindowAttributes.flags);
//                        }
//                        // Clear the forward bit.  We can just do this directly, since
//                        // the window manager doesn't care about it.
//                        mWindowAttributes.softInputMode &=
//                                ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION;
//                        ((WindowManager.LayoutParams)mView.getLayoutParams())
//                                .softInputMode &=
//                                    ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION;
//                        mHasHadWindowFocus = true;
//                    }
//
//                    if (mView != null && mAccessibilityManager.isEnabled()) {
//                        if (hasWindowFocus) {
//                            mView.sendAccessibilityEvent(
//                                    AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
//                        }
//                    }
//                }
//            } break;
//            case MSG_DIE:
//                doDie();
//                break;
//            case MSG_DISPATCH_INPUT_EVENT: {
//                SomeArgs args = (SomeArgs)msg.obj;
//                InputEvent event = (InputEvent)args.arg1;
//                InputEventReceiver receiver = (InputEventReceiver)args.arg2;
//                enqueueInputEvent(event, receiver, 0, true);
//                args.recycle();
//            } break;
//            case MSG_SYNTHESIZE_INPUT_EVENT: {
//                InputEvent event = (InputEvent)msg.obj;
//                enqueueInputEvent(event, null, QueuedInputEvent.FLAG_UNHANDLED, true);
//            } break;
//            case MSG_DISPATCH_KEY_FROM_IME: {
//                if (LOCAL_LOGV) Log.v(
//                    TAG, "Dispatching key "
//                    + msg.obj + " from IME to " + mView);
//                KeyEvent event = (KeyEvent)msg.obj;
//                if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) {
//                    // The IME is trying to say this event is from the
//                    // system!  Bad bad bad!
//                    //noinspection UnusedAssignment
//                    event = KeyEvent.changeFlags(event, event.getFlags() &
//                            ~KeyEvent.FLAG_FROM_SYSTEM);
//                }
//                enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true);
//            } break;
//            case MSG_FINISH_INPUT_CONNECTION: {
//                InputMethodManager imm = InputMethodManager.peekInstance();
//                if (imm != null) {
//                    imm.reportFinishInputConnection((InputConnection)msg.obj);
//                }
//            } break;
//            case MSG_CHECK_FOCUS: {
//                InputMethodManager imm = InputMethodManager.peekInstance();
//                if (imm != null) {
//                    imm.checkFocus();
//                }
//            } break;
//            case MSG_CLOSE_SYSTEM_DIALOGS: {
//                if (mView != null) {
//                    mView.onCloseSystemDialogs((String)msg.obj);
//                }
//            } break;
//            case MSG_DISPATCH_DRAG_EVENT:
//            case MSG_DISPATCH_DRAG_LOCATION_EVENT: {
//                DragEvent event = (DragEvent)msg.obj;
//                event.mLocalState = mLocalDragState;    // only present when this app called startDrag()
//                handleDragEvent(event);
//            } break;
//            case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: {
//                handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj);
//            } break;
//            case MSG_UPDATE_CONFIGURATION: {
//                Configuration config = (Configuration)msg.obj;
//                if (config.isOtherSeqNewer(mLastConfiguration)) {
//                    config = mLastConfiguration;
//                }
//                updateConfiguration(config, false);
//            } break;
//            case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: {
//                setAccessibilityFocus(null, null);
//            } break;
//            case MSG_DISPATCH_WINDOW_ANIMATION_STARTED: {
//                int remainingFrameCount = msg.arg1;
//                handleDispatchWindowAnimationStarted(remainingFrameCount);
//            } break;
//            case MSG_DISPATCH_WINDOW_ANIMATION_STOPPED: {
//                handleDispatchWindowAnimationStopped();
//            } break;
//            case MSG_INVALIDATE_WORLD: {
//                if (mView != null) {
//                    invalidateWorld(mView);
//                }
//            } break;
//            case MSG_DISPATCH_WINDOW_SHOWN: {
//                handleDispatchWindowShown();
//            }
//            }
//        }
//    }
//
//    final ViewRootHandler mHandler = new ViewRootHandler();
//
//    /**
//     * Something in the current window tells us we need to change the touch mode.  For
//     * example, we are not in touch mode, and the user touches the screen.
//     *
//     * If the touch mode has changed, tell the window manager, and handle it locally.
//     *
//     * @param inTouchMode Whether we want to be in touch mode.
//     * @return True if the touch mode changed and focus changed was changed as a result
//     */
//    boolean ensureTouchMode(boolean inTouchMode) {
//        if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current "
//                + "touch mode is " + mAttachInfo.mInTouchMode);
//        if (mAttachInfo.mInTouchMode == inTouchMode) return false;
//
//        // tell the window manager
//        try {
//            if (!isInLocalFocusMode()) {
//                mWindowSession.setInTouchMode(inTouchMode);
//            }
//        } catch (RemoteException e) {
//            throw new RuntimeException(e);
//        }
//
//        // handle the change
//        return ensureTouchModeLocally(inTouchMode);
//    }
//
//    /**
//     * Ensure that the touch mode for this window is set, and if it is changing,
//     * take the appropriate action.
//     * @param inTouchMode Whether we want to be in touch mode.
//     * @return True if the touch mode changed and focus changed was changed as a result
//     */
//    private boolean ensureTouchModeLocally(boolean inTouchMode) {
//        if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current "
//                + "touch mode is " + mAttachInfo.mInTouchMode);
//
//        if (mAttachInfo.mInTouchMode == inTouchMode) return false;
//
//        mAttachInfo.mInTouchMode = inTouchMode;
//        mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode);
//
//        return (inTouchMode) ? enterTouchMode() : leaveTouchMode();
//    }
//
//    private boolean enterTouchMode() {
//        if (mView != null && mView.hasFocus()) {
//            // note: not relying on mFocusedView here because this could
//            // be when the window is first being added, and mFocused isn't
//            // set yet.
//            final View focused = mView.findFocus();
//            if (focused != null && !focused.isFocusableInTouchMode()) {
//                final ViewGroup ancestorToTakeFocus = findAncestorToTakeFocusInTouchMode(focused);
//                if (ancestorToTakeFocus != null) {
//                    // there is an ancestor that wants focus after its
//                    // descendants that is focusable in touch mode.. give it
//                    // focus
//                    return ancestorToTakeFocus.requestFocus();
//                } else {
//                    // There's nothing to focus. Clear and propagate through the
//                    // hierarchy, but don't attempt to place new focus.
//                    focused.clearFocusInternal(null, true, false);
//                    return true;
//                }
//            }
//        }
//        return false;
//    }
//
//    /**
//     * Find an ancestor of focused that wants focus after its descendants and is
//     * focusable in touch mode.
//     * @param focused The currently focused view.
//     * @return An appropriate view, or null if no such view exists.
//     */
//    private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) {
//        ViewParent parent = focused.getParent();
//        while (parent instanceof ViewGroup) {
//            final ViewGroup vgParent = (ViewGroup) parent;
//            if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS
//                    && vgParent.isFocusableInTouchMode()) {
//                return vgParent;
//            }
//            if (vgParent.isRootNamespace()) {
//                return null;
//            } else {
//                parent = vgParent.getParent();
//            }
//        }
//        return null;
//    }
//
//    private boolean leaveTouchMode() {
//        if (mView != null) {
//            if (mView.hasFocus()) {
//                View focusedView = mView.findFocus();
//                if (!(focusedView instanceof ViewGroup)) {
//                    // some view has focus, let it keep it
//                    return false;
//                } else if (((ViewGroup) focusedView).getDescendantFocusability() !=
//                        ViewGroup.FOCUS_AFTER_DESCENDANTS) {
//                    // some view group has focus, and doesn't prefer its children
//                    // over itself for focus, so let them keep it.
//                    return false;
//                }
//            }
//
//            // find the best view to give focus to in this brave new non-touch-mode
//            // world
//            final View focused = focusSearch(null, View.FOCUS_DOWN);
//            if (focused != null) {
//                return focused.requestFocus(View.FOCUS_DOWN);
//            }
//        }
//        return false;
//    }
//
//    /**
//     * Base class for implementing a stage in the chain of responsibility
//     * for processing input events.
//     * <p>
//     * Events are delivered to the stage by the {@link #deliver} method.  The stage
//     * then has the choice of finishing the event or forwarding it to the next stage.
//     * </p>
//     */
//    abstract class InputStage {
//        private final InputStage mNext;
//
//        protected static final int FORWARD = 0;
//        protected static final int FINISH_HANDLED = 1;
//        protected static final int FINISH_NOT_HANDLED = 2;
//
//        /**
//         * Creates an input stage.
//         * @param next The next stage to which events should be forwarded.
//         */
//        public InputStage(InputStage next) {
//            mNext = next;
//        }
//
//        /**
//         * Delivers an event to be processed.
//         */
//        public final void deliver(QueuedInputEvent q) {
//            if ((q.mFlags & QueuedInputEvent.FLAG_FINISHED) != 0) {
//                forward(q);
//            } else if (shouldDropInputEvent(q)) {
//                finish(q, false);
//            } else {
//                apply(q, onProcess(q));
//            }
//        }
//
//        /**
//         * Marks the the input event as finished then forwards it to the next stage.
//         */
//        protected void finish(QueuedInputEvent q, boolean handled) {
//            q.mFlags |= QueuedInputEvent.FLAG_FINISHED;
//            if (handled) {
//                q.mFlags |= QueuedInputEvent.FLAG_FINISHED_HANDLED;
//            }
//            forward(q);
//        }
//
//        /**
//         * Forwards the event to the next stage.
//         */
//        protected void forward(QueuedInputEvent q) {
//            onDeliverToNext(q);
//        }
//
//        /**
//         * Applies a result code from {@link #onProcess} to the specified event.
//         */
//        protected void apply(QueuedInputEvent q, int result) {
//            if (result == FORWARD) {
//                forward(q);
//            } else if (result == FINISH_HANDLED) {
//                finish(q, true);
//            } else if (result == FINISH_NOT_HANDLED) {
//                finish(q, false);
//            } else {
//                throw new IllegalArgumentException("Invalid result: " + result);
//            }
//        }
//
//        /**
//         * Called when an event is ready to be processed.
//         * @return A result code indicating how the event was handled.
//         */
//        protected int onProcess(QueuedInputEvent q) {
//            return FORWARD;
//        }
//
//        /**
//         * Called when an event is being delivered to the next stage.
//         */
//        protected void onDeliverToNext(QueuedInputEvent q) {
//            if (DEBUG_INPUT_STAGES) {
//                Log.v(TAG, "Done with " + getClass().getSimpleName() + ". " + q);
//            }
//            if (mNext != null) {
//                mNext.deliver(q);
//            } else {
//                finishInputEvent(q);
//            }
//        }
//
//        protected boolean shouldDropInputEvent(QueuedInputEvent q) {
//            if (mView == null || !mAdded) {
//                Slog.w(TAG, "Dropping event due to root view being removed: " + q.mEvent);
//                return true;
//            } else if ((!mAttachInfo.mHasWindowFocus
//                    && !q.mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER)) || mStopped
//                    || (mPausedForTransition && !isBack(q.mEvent))) {
//                // This is a focus event and the window doesn't currently have input focus or
//                // has stopped. This could be an event that came back from the previous stage
//                // but the window has lost focus or stopped in the meantime.
//                if (isTerminalInputEvent(q.mEvent)) {
//                    // Don't drop terminal input events, however mark them as canceled.
//                    q.mEvent.cancel();
//                    Slog.w(TAG, "Cancelling event due to no window focus: " + q.mEvent);
//                    return false;
//                }
//
//                // Drop non-terminal input events.
//                Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent);
//                return true;
//            }
//            return false;
//        }
//
//        void dump(String prefix, PrintWriter writer) {
//            if (mNext != null) {
//                mNext.dump(prefix, writer);
//            }
//        }
//
//        private boolean isBack(InputEvent event) {
//            if (event instanceof KeyEvent) {
//                return ((KeyEvent) event).getKeyCode() == KeyEvent.KEYCODE_BACK;
//            } else {
//                return false;
//            }
//        }
//    }
//
//    /**
//     * Base class for implementing an input pipeline stage that supports
//     * asynchronous and out-of-order processing of input events.
//     * <p>
//     * In addition to what a normal input stage can do, an asynchronous
//     * input stage may also defer an input event that has been delivered to it
//     * and finish or forward it later.
//     * </p>
//     */
//    abstract class AsyncInputStage extends InputStage {
//        private final String mTraceCounter;
//
//        private QueuedInputEvent mQueueHead;
//        private QueuedInputEvent mQueueTail;
//        private int mQueueLength;
//
//        protected static final int DEFER = 3;
//
//        /**
//         * Creates an asynchronous input stage.
//         * @param next The next stage to which events should be forwarded.
//         * @param traceCounter The name of a counter to record the size of
//         * the queue of pending events.
//         */
//        public AsyncInputStage(InputStage next, String traceCounter) {
//            super(next);
//            mTraceCounter = traceCounter;
//        }
//
//        /**
//         * Marks the event as deferred, which is to say that it will be handled
//         * asynchronously.  The caller is responsible for calling {@link #forward}
//         * or {@link #finish} later when it is done handling the event.
//         */
//        protected void defer(QueuedInputEvent q) {
//            q.mFlags |= QueuedInputEvent.FLAG_DEFERRED;
//            enqueue(q);
//        }
//
//        @Override
//        protected void forward(QueuedInputEvent q) {
//            // Clear the deferred flag.
//            q.mFlags &= ~QueuedInputEvent.FLAG_DEFERRED;
//
//            // Fast path if the queue is empty.
//            QueuedInputEvent curr = mQueueHead;
//            if (curr == null) {
//                super.forward(q);
//                return;
//            }
//
//            // Determine whether the event must be serialized behind any others
//            // before it can be delivered to the next stage.  This is done because
//            // deferred events might be handled out of order by the stage.
//            final int deviceId = q.mEvent.getDeviceId();
//            QueuedInputEvent prev = null;
//            boolean blocked = false;
//            while (curr != null && curr != q) {
//                if (!blocked && deviceId == curr.mEvent.getDeviceId()) {
//                    blocked = true;
//                }
//                prev = curr;
//                curr = curr.mNext;
//            }
//
//            // If the event is blocked, then leave it in the queue to be delivered later.
//            // Note that the event might not yet be in the queue if it was not previously
//            // deferred so we will enqueue it if needed.
//            if (blocked) {
//                if (curr == null) {
//                    enqueue(q);
//                }
//                return;
//            }
//
//            // The event is not blocked.  Deliver it immediately.
//            if (curr != null) {
//                curr = curr.mNext;
//                dequeue(q, prev);
//            }
//            super.forward(q);
//
//            // Dequeuing this event may have unblocked successors.  Deliver them.
//            while (curr != null) {
//                if (deviceId == curr.mEvent.getDeviceId()) {
//                    if ((curr.mFlags & QueuedInputEvent.FLAG_DEFERRED) != 0) {
//                        break;
//                    }
//                    QueuedInputEvent next = curr.mNext;
//                    dequeue(curr, prev);
//                    super.forward(curr);
//                    curr = next;
//                } else {
//                    prev = curr;
//                    curr = curr.mNext;
//                }
//            }
//        }
//
//        @Override
//        protected void apply(QueuedInputEvent q, int result) {
//            if (result == DEFER) {
//                defer(q);
//            } else {
//                super.apply(q, result);
//            }
//        }
//
//        private void enqueue(QueuedInputEvent q) {
//            if (mQueueTail == null) {
//                mQueueHead = q;
//                mQueueTail = q;
//            } else {
//                mQueueTail.mNext = q;
//                mQueueTail = q;
//            }
//
//            mQueueLength += 1;
//            Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength);
//        }
//
//        private void dequeue(QueuedInputEvent q, QueuedInputEvent prev) {
//            if (prev == null) {
//                mQueueHead = q.mNext;
//            } else {
//                prev.mNext = q.mNext;
//            }
//            if (mQueueTail == q) {
//                mQueueTail = prev;
//            }
//            q.mNext = null;
//
//            mQueueLength -= 1;
//            Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength);
//        }
//
//        @Override
//        void dump(String prefix, PrintWriter writer) {
//            writer.print(prefix);
//            writer.print(getClass().getName());
//            writer.print(": mQueueLength=");
//            writer.println(mQueueLength);
//
//            super.dump(prefix, writer);
//        }
//    }
//
//    /**
//     * Delivers pre-ime input events to a native activity.
//     * Does not support pointer events.
//     */
//    final class NativePreImeInputStage extends AsyncInputStage
//            implements InputQueue.FinishedInputEventCallback {
//        public NativePreImeInputStage(InputStage next, String traceCounter) {
//            super(next, traceCounter);
//        }
//
//        @Override
//        protected int onProcess(QueuedInputEvent q) {
//            if (mInputQueue != null && q.mEvent instanceof KeyEvent) {
//                mInputQueue.sendInputEvent(q.mEvent, q, true, this);
//                return DEFER;
//            }
//            return FORWARD;
//        }
//
//        @Override
//        public void onFinishedInputEvent(Object token, boolean handled) {
//            QueuedInputEvent q = (QueuedInputEvent)token;
//            if (handled) {
//                finish(q, true);
//                return;
//            }
//            forward(q);
//        }
//    }
//
//    /**
//     * Delivers pre-ime input events to the view hierarchy.
//     * Does not support pointer events.
//     */
//    final class ViewPreImeInputStage extends InputStage {
//        public ViewPreImeInputStage(InputStage next) {
//            super(next);
//        }
//
//        @Override
//        protected int onProcess(QueuedInputEvent q) {
//            if (q.mEvent instanceof KeyEvent) {
//                return processKeyEvent(q);
//            }
//            return FORWARD;
//        }
//
//        private int processKeyEvent(QueuedInputEvent q) {
//            final KeyEvent event = (KeyEvent)q.mEvent;
//            if (mView.dispatchKeyEventPreIme(event)) {
//                return FINISH_HANDLED;
//            }
//            return FORWARD;
//        }
//    }
//
//    /**
//     * Delivers input events to the ime.
//     * Does not support pointer events.
//     */
//    final class ImeInputStage extends AsyncInputStage
//            implements InputMethodManager.FinishedInputEventCallback {
//        public ImeInputStage(InputStage next, String traceCounter) {
//            super(next, traceCounter);
//        }
//
//        @Override
//        protected int onProcess(QueuedInputEvent q) {
//            if (mLastWasImTarget && !isInLocalFocusMode()) {
//                InputMethodManager imm = InputMethodManager.peekInstance();
//                if (imm != null) {
//                    final InputEvent event = q.mEvent;
//                    if (DEBUG_IMF) Log.v(TAG, "Sending input event to IME: " + event);
//                    int result = imm.dispatchInputEvent(event, q, this, mHandler);
//                    if (result == InputMethodManager.DISPATCH_HANDLED) {
//                        return FINISH_HANDLED;
//                    } else if (result == InputMethodManager.DISPATCH_NOT_HANDLED) {
//                        // The IME could not handle it, so skip along to the next InputStage
//                        return FORWARD;
//                    } else {
//                        return DEFER; // callback will be invoked later
//                    }
//                }
//            }
//            return FORWARD;
//        }
//
//        @Override
//        public void onFinishedInputEvent(Object token, boolean handled) {
//            QueuedInputEvent q = (QueuedInputEvent)token;
//            if (handled) {
//                finish(q, true);
//                return;
//            }
//            forward(q);
//        }
//    }
//
//    /**
//     * Performs early processing of post-ime input events.
//     */
//    final class EarlyPostImeInputStage extends InputStage {
//        public EarlyPostImeInputStage(InputStage next) {
//            super(next);
//        }
//
//        @Override
//        protected int onProcess(QueuedInputEvent q) {
//            if (q.mEvent instanceof KeyEvent) {
//                return processKeyEvent(q);
//            } else {
//                final int source = q.mEvent.getSource();
//                if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) {
//                    return processPointerEvent(q);
//                }
//            }
//            return FORWARD;
//        }
//
//        private int processKeyEvent(QueuedInputEvent q) {
//            final KeyEvent event = (KeyEvent)q.mEvent;
//
//            // If the key's purpose is to exit touch mode then we consume it
//            // and consider it handled.
//            if (checkForLeavingTouchModeAndConsume(event)) {
//                return FINISH_HANDLED;
//            }
//
//            // Make sure the fallback event policy sees all keys that will be
//            // delivered to the view hierarchy.
//            mFallbackEventHandler.preDispatchKeyEvent(event);
//            return FORWARD;
//        }
//
//        private int processPointerEvent(QueuedInputEvent q) {
//            final MotionEvent event = (MotionEvent)q.mEvent;
//
//            // Translate the pointer event for compatibility, if needed.
//            if (mTranslator != null) {
//                mTranslator.translateEventInScreenToAppWindow(event);
//            }
//
//            // Enter touch mode on down or scroll.
//            final int action = event.getAction();
//            if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) {
//                ensureTouchMode(true);
//            }
//
//            // Offset the scroll position.
//            if (mCurScrollY != 0) {
//                event.offsetLocation(0, mCurScrollY);
//            }
//
//            // Remember the touch position for possible drag-initiation.
//            if (event.isTouchEvent()) {
//                mLastTouchPoint.x = event.getRawX();
//                mLastTouchPoint.y = event.getRawY();
//            }
//            return FORWARD;
//        }
//    }
//
//    /**
//     * Delivers post-ime input events to a native activity.
//     */
//    final class NativePostImeInputStage extends AsyncInputStage
//            implements InputQueue.FinishedInputEventCallback {
//        public NativePostImeInputStage(InputStage next, String traceCounter) {
//            super(next, traceCounter);
//        }
//
//        @Override
//        protected int onProcess(QueuedInputEvent q) {
//            if (mInputQueue != null) {
//                mInputQueue.sendInputEvent(q.mEvent, q, false, this);
//                return DEFER;
//            }
//            return FORWARD;
//        }
//
//        @Override
//        public void onFinishedInputEvent(Object token, boolean handled) {
//            QueuedInputEvent q = (QueuedInputEvent)token;
//            if (handled) {
//                finish(q, true);
//                return;
//            }
//            forward(q);
//        }
//    }
//
//    /**
//     * Delivers post-ime input events to the view hierarchy.
//     */
//    final class ViewPostImeInputStage extends InputStage {
//        public ViewPostImeInputStage(InputStage next) {
//            super(next);
//        }
//
//        @Override
//        protected int onProcess(QueuedInputEvent q) {
//            if (q.mEvent instanceof KeyEvent) {
//                return processKeyEvent(q);
//            } else {
//                // If delivering a new non-key event, make sure the window is
//                // now allowed to start updating.
//                handleDispatchWindowAnimationStopped();
//                final int source = q.mEvent.getSource();
//                if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) {
//                    return processPointerEvent(q);
//                } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) {
//                    return processTrackballEvent(q);
//                } else {
//                    return processGenericMotionEvent(q);
//                }
//            }
//        }
//
//        @Override
//        protected void onDeliverToNext(QueuedInputEvent q) {
//            if (mUnbufferedInputDispatch
//                    && q.mEvent instanceof MotionEvent
//                    && ((MotionEvent)q.mEvent).isTouchEvent()
//                    && isTerminalInputEvent(q.mEvent)) {
//                mUnbufferedInputDispatch = false;
//                scheduleConsumeBatchedInput();
//            }
//            super.onDeliverToNext(q);
//        }
//
//        private int processKeyEvent(QueuedInputEvent q) {
//            final KeyEvent event = (KeyEvent)q.mEvent;
//
//            if (event.getAction() != KeyEvent.ACTION_UP) {
//                // If delivering a new key event, make sure the window is
//                // now allowed to start updating.
//                handleDispatchWindowAnimationStopped();
//            }
//
//            // Deliver the key to the view hierarchy.
//            if (mView.dispatchKeyEvent(event)) {
//                return FINISH_HANDLED;
//            }
//
//            if (shouldDropInputEvent(q)) {
//                return FINISH_NOT_HANDLED;
//            }
//
//            // If the Control modifier is held, try to interpret the key as a shortcut.
//            if (event.getAction() == KeyEvent.ACTION_DOWN
//                    && event.isCtrlPressed()
//                    && event.getRepeatCount() == 0
//                    && !KeyEvent.isModifierKey(event.getKeyCode())) {
//                if (mView.dispatchKeyShortcutEvent(event)) {
//                    return FINISH_HANDLED;
//                }
//                if (shouldDropInputEvent(q)) {
//                    return FINISH_NOT_HANDLED;
//                }
//            }
//
//            // Apply the fallback event policy.
//            if (mFallbackEventHandler.dispatchKeyEvent(event)) {
//                return FINISH_HANDLED;
//            }
//            if (shouldDropInputEvent(q)) {
//                return FINISH_NOT_HANDLED;
//            }
//
//            // Handle automatic focus changes.
//            if (event.getAction() == KeyEvent.ACTION_DOWN) {
//                int direction = 0;
//                switch (event.getKeyCode()) {
//                    case KeyEvent.KEYCODE_DPAD_LEFT:
//                        if (event.hasNoModifiers()) {
//                            direction = View.FOCUS_LEFT;
//                        }
//                        break;
//                    case KeyEvent.KEYCODE_DPAD_RIGHT:
//                        if (event.hasNoModifiers()) {
//                            direction = View.FOCUS_RIGHT;
//                        }
//                        break;
//                    case KeyEvent.KEYCODE_DPAD_UP:
//                        if (event.hasNoModifiers()) {
//                            direction = View.FOCUS_UP;
//                        }
//                        break;
//                    case KeyEvent.KEYCODE_DPAD_DOWN:
//                        if (event.hasNoModifiers()) {
//                            direction = View.FOCUS_DOWN;
//                        }
//                        break;
//                    case KeyEvent.KEYCODE_TAB:
//                        if (event.hasNoModifiers()) {
//                            direction = View.FOCUS_FORWARD;
//                        } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) {
//                            direction = View.FOCUS_BACKWARD;
//                        }
//                        break;
//                }
//                if (direction != 0) {
//                    View focused = mView.findFocus();
//                    if (focused != null) {
//                        View v = focused.focusSearch(direction);
//                        if (v != null && v != focused) {
//                            // do the math the get the interesting rect
//                            // of previous focused into the coord system of
//                            // newly focused view
//                            focused.getFocusedRect(mTempRect);
//                            if (mView instanceof ViewGroup) {
//                                ((ViewGroup) mView).offsetDescendantRectToMyCoords(
//                                        focused, mTempRect);
//                                ((ViewGroup) mView).offsetRectIntoDescendantCoords(
//                                        v, mTempRect);
//                            }
//                            if (v.requestFocus(direction, mTempRect)) {
//                                playSoundEffect(SoundEffectConstants
//                                        .getContantForFocusDirection(direction));
//                                return FINISH_HANDLED;
//                            }
//                        }
//
//                        // Give the focused view a last chance to handle the dpad key.
//                        if (mView.dispatchUnhandledMove(focused, direction)) {
//                            return FINISH_HANDLED;
//                        }
//                    } else {
//                        // find the best view to give focus to in this non-touch-mode with no-focus
//                        View v = focusSearch(null, direction);
//                        if (v != null && v.requestFocus(direction)) {
//                            return FINISH_HANDLED;
//                        }
//                    }
//                }
//            }
//            return FORWARD;
//        }
//
//        private int processPointerEvent(QueuedInputEvent q) {
//            final MotionEvent event = (MotionEvent)q.mEvent;
//
//            mAttachInfo.mUnbufferedDispatchRequested = false;
//            boolean handled = mView.dispatchPointerEvent(event);
//            if (mAttachInfo.mUnbufferedDispatchRequested && !mUnbufferedInputDispatch) {
//                mUnbufferedInputDispatch = true;
//                if (mConsumeBatchedInputScheduled) {
//                    scheduleConsumeBatchedInputImmediately();
//                }
//            }
//            return handled ? FINISH_HANDLED : FORWARD;
//        }
//
//        private int processTrackballEvent(QueuedInputEvent q) {
//            final MotionEvent event = (MotionEvent)q.mEvent;
//
//            if (mView.dispatchTrackballEvent(event)) {
//                return FINISH_HANDLED;
//            }
//            return FORWARD;
//        }
//
//        private int processGenericMotionEvent(QueuedInputEvent q) {
//            final MotionEvent event = (MotionEvent)q.mEvent;
//
//            // Deliver the event to the view.
//            if (mView.dispatchGenericMotionEvent(event)) {
//                return FINISH_HANDLED;
//            }
//            return FORWARD;
//        }
//    }
//
//    /**
//     * Performs synthesis of new input events from unhandled input events.
//     */
//    final class SyntheticInputStage extends InputStage {
//        private final SyntheticTrackballHandler mTrackball = new SyntheticTrackballHandler();
//        private final SyntheticJoystickHandler mJoystick = new SyntheticJoystickHandler();
//        private final SyntheticTouchNavigationHandler mTouchNavigation =
//                new SyntheticTouchNavigationHandler();
//        private final SyntheticKeyboardHandler mKeyboard = new SyntheticKeyboardHandler();
//
//        public SyntheticInputStage() {
//            super(null);
//        }
//
//        @Override
//        protected int onProcess(QueuedInputEvent q) {
//            q.mFlags |= QueuedInputEvent.FLAG_RESYNTHESIZED;
//            if (q.mEvent instanceof MotionEvent) {
//                final MotionEvent event = (MotionEvent)q.mEvent;
//                final int source = event.getSource();
//                if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) {
//                    mTrackball.process(event);
//                    return FINISH_HANDLED;
//                } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
//                    mJoystick.process(event);
//                    return FINISH_HANDLED;
//                } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION)
//                        == InputDevice.SOURCE_TOUCH_NAVIGATION) {
//                    mTouchNavigation.process(event);
//                    return FINISH_HANDLED;
//                }
//            } else if ((q.mFlags & QueuedInputEvent.FLAG_UNHANDLED) != 0) {
//                mKeyboard.process((KeyEvent)q.mEvent);
//                return FINISH_HANDLED;
//            }
//
//            return FORWARD;
//        }
//
//        @Override
//        protected void onDeliverToNext(QueuedInputEvent q) {
//            if ((q.mFlags & QueuedInputEvent.FLAG_RESYNTHESIZED) == 0) {
//                // Cancel related synthetic events if any prior stage has handled the event.
//                if (q.mEvent instanceof MotionEvent) {
//                    final MotionEvent event = (MotionEvent)q.mEvent;
//                    final int source = event.getSource();
//                    if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) {
//                        mTrackball.cancel(event);
//                    } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
//                        mJoystick.cancel(event);
//                    } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION)
//                            == InputDevice.SOURCE_TOUCH_NAVIGATION) {
//                        mTouchNavigation.cancel(event);
//                    }
//                }
//            }
//            super.onDeliverToNext(q);
//        }
//    }
//
//    /**
//     * Creates dpad events from unhandled trackball movements.
//     */
//    final class SyntheticTrackballHandler {
//        private final TrackballAxis mX = new TrackballAxis();
//        private final TrackballAxis mY = new TrackballAxis();
//        private long mLastTime;
//
//        public void process(MotionEvent event) {
//            // Translate the trackball event into DPAD keys and try to deliver those.
//            long curTime = SystemClock.uptimeMillis();
//            if ((mLastTime + MAX_TRACKBALL_DELAY) < curTime) {
//                // It has been too long since the last movement,
//                // so restart at the beginning.
//                mX.reset(0);
//                mY.reset(0);
//                mLastTime = curTime;
//            }
//
//            final int action = event.getAction();
//            final int metaState = event.getMetaState();
//            switch (action) {
//                case MotionEvent.ACTION_DOWN:
//                    mX.reset(2);
//                    mY.reset(2);
//                    enqueueInputEvent(new KeyEvent(curTime, curTime,
//                            KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState,
//                            KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK,
//                            InputDevice.SOURCE_KEYBOARD));
//                    break;
//                case MotionEvent.ACTION_UP:
//                    mX.reset(2);
//                    mY.reset(2);
//                    enqueueInputEvent(new KeyEvent(curTime, curTime,
//                            KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState,
//                            KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK,
//                            InputDevice.SOURCE_KEYBOARD));
//                    break;
//            }
//
//            if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + mX.position + " step="
//                    + mX.step + " dir=" + mX.dir + " acc=" + mX.acceleration
//                    + " move=" + event.getX()
//                    + " / Y=" + mY.position + " step="
//                    + mY.step + " dir=" + mY.dir + " acc=" + mY.acceleration
//                    + " move=" + event.getY());
//            final float xOff = mX.collect(event.getX(), event.getEventTime(), "X");
//            final float yOff = mY.collect(event.getY(), event.getEventTime(), "Y");
//
//            // Generate DPAD events based on the trackball movement.
//            // We pick the axis that has moved the most as the direction of
//            // the DPAD.  When we generate DPAD events for one axis, then the
//            // other axis is reset -- we don't want to perform DPAD jumps due
//            // to slight movements in the trackball when making major movements
//            // along the other axis.
//            int keycode = 0;
//            int movement = 0;
//            float accel = 1;
//            if (xOff > yOff) {
//                movement = mX.generate();
//                if (movement != 0) {
//                    keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT
//                            : KeyEvent.KEYCODE_DPAD_LEFT;
//                    accel = mX.acceleration;
//                    mY.reset(2);
//                }
//            } else if (yOff > 0) {
//                movement = mY.generate();
//                if (movement != 0) {
//                    keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN
//                            : KeyEvent.KEYCODE_DPAD_UP;
//                    accel = mY.acceleration;
//                    mX.reset(2);
//                }
//            }
//
//            if (keycode != 0) {
//                if (movement < 0) movement = -movement;
//                int accelMovement = (int)(movement * accel);
//                if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement
//                        + " accelMovement=" + accelMovement
//                        + " accel=" + accel);
//                if (accelMovement > movement) {
//                    if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: "
//                            + keycode);
//                    movement--;
//                    int repeatCount = accelMovement - movement;
//                    enqueueInputEvent(new KeyEvent(curTime, curTime,
//                            KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState,
//                            KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK,
//                            InputDevice.SOURCE_KEYBOARD));
//                }
//                while (movement > 0) {
//                    if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: "
//                            + keycode);
//                    movement--;
//                    curTime = SystemClock.uptimeMillis();
//                    enqueueInputEvent(new KeyEvent(curTime, curTime,
//                            KeyEvent.ACTION_DOWN, keycode, 0, metaState,
//                            KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK,
//                            InputDevice.SOURCE_KEYBOARD));
//                    enqueueInputEvent(new KeyEvent(curTime, curTime,
//                            KeyEvent.ACTION_UP, keycode, 0, metaState,
//                            KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK,
//                            InputDevice.SOURCE_KEYBOARD));
//                }
//                mLastTime = curTime;
//            }
//        }
//
//        public void cancel(MotionEvent event) {
//            mLastTime = Integer.MIN_VALUE;
//
//            // If we reach this, we consumed a trackball event.
//            // Because we will not translate the trackball event into a key event,
//            // touch mode will not exit, so we exit touch mode here.
//            if (mView != null && mAdded) {
//                ensureTouchMode(false);
//            }
//        }
//    }
//
//    /**
//     * Maintains state information for a single trackball axis, generating
//     * discrete (DPAD) movements based on raw trackball motion.
//     */
//    static final class TrackballAxis {
//        /**
//         * The maximum amount of acceleration we will apply.
//         */
//        static final float MAX_ACCELERATION = 20;
//
//        /**
//         * The maximum amount of time (in milliseconds) between events in order
//         * for us to consider the user to be doing fast trackball movements,
//         * and thus apply an acceleration.
//         */
//        static final long FAST_MOVE_TIME = 150;
//
//        /**
//         * Scaling factor to the time (in milliseconds) between events to how
//         * much to multiple/divide the current acceleration.  When movement
//         * is < FAST_MOVE_TIME this multiplies the acceleration; when >
//         * FAST_MOVE_TIME it divides it.
//         */
//        static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40);
//
//        static final float FIRST_MOVEMENT_THRESHOLD = 0.5f;
//        static final float SECOND_CUMULATIVE_MOVEMENT_THRESHOLD = 2.0f;
//        static final float SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD = 1.0f;
//
//        float position;
//        float acceleration = 1;
//        long lastMoveTime = 0;
//        int step;
//        int dir;
//        int nonAccelMovement;
//
//        void reset(int _step) {
//            position = 0;
//            acceleration = 1;
//            lastMoveTime = 0;
//            step = _step;
//            dir = 0;
//        }
//
//        /**
//         * Add trackball movement into the state.  If the direction of movement
//         * has been reversed, the state is reset before adding the
//         * movement (so that you don't have to compensate for any previously
//         * collected movement before see the result of the movement in the
//         * new direction).
//         *
//         * @return Returns the absolute value of the amount of movement
//         * collected so far.
//         */
//        float collect(float off, long time, String axis) {
//            long normTime;
//            if (off > 0) {
//                normTime = (long)(off * FAST_MOVE_TIME);
//                if (dir < 0) {
//                    if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!");
//                    position = 0;
//                    step = 0;
//                    acceleration = 1;
//                    lastMoveTime = 0;
//                }
//                dir = 1;
//            } else if (off < 0) {
//                normTime = (long)((-off) * FAST_MOVE_TIME);
//                if (dir > 0) {
//                    if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!");
//                    position = 0;
//                    step = 0;
//                    acceleration = 1;
//                    lastMoveTime = 0;
//                }
//                dir = -1;
//            } else {
//                normTime = 0;
//            }
//
//            // The number of milliseconds between each movement that is
//            // considered "normal" and will not result in any acceleration
//            // or deceleration, scaled by the offset we have here.
//            if (normTime > 0) {
//                long delta = time - lastMoveTime;
//                lastMoveTime = time;
//                float acc = acceleration;
//                if (delta < normTime) {
//                    // The user is scrolling rapidly, so increase acceleration.
//                    float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR;
//                    if (scale > 1) acc *= scale;
//                    if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off="
//                            + off + " normTime=" + normTime + " delta=" + delta
//                            + " scale=" + scale + " acc=" + acc);
//                    acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION;
//                } else {
//                    // The user is scrolling slowly, so decrease acceleration.
//                    float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR;
//                    if (scale > 1) acc /= scale;
//                    if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off="
//                            + off + " normTime=" + normTime + " delta=" + delta
//                            + " scale=" + scale + " acc=" + acc);
//                    acceleration = acc > 1 ? acc : 1;
//                }
//            }
//            position += off;
//            return Math.abs(position);
//        }
//
//        /**
//         * Generate the number of discrete movement events appropriate for
//         * the currently collected trackball movement.
//         *
//         * @return Returns the number of discrete movements, either positive
//         * or negative, or 0 if there is not enough trackball movement yet
//         * for a discrete movement.
//         */
//        int generate() {
//            int movement = 0;
//            nonAccelMovement = 0;
//            do {
//                final int dir = position >= 0 ? 1 : -1;
//                switch (step) {
//                    // If we are going to execute the first step, then we want
//                    // to do this as soon as possible instead of waiting for
//                    // a full movement, in order to make things look responsive.
//                    case 0:
//                        if (Math.abs(position) < FIRST_MOVEMENT_THRESHOLD) {
//                            return movement;
//                        }
//                        movement += dir;
//                        nonAccelMovement += dir;
//                        step = 1;
//                        break;
//                    // If we have generated the first movement, then we need
//                    // to wait for the second complete trackball motion before
//                    // generating the second discrete movement.
//                    case 1:
//                        if (Math.abs(position) < SECOND_CUMULATIVE_MOVEMENT_THRESHOLD) {
//                            return movement;
//                        }
//                        movement += dir;
//                        nonAccelMovement += dir;
//                        position -= SECOND_CUMULATIVE_MOVEMENT_THRESHOLD * dir;
//                        step = 2;
//                        break;
//                    // After the first two, we generate discrete movements
//                    // consistently with the trackball, applying an acceleration
//                    // if the trackball is moving quickly.  This is a simple
//                    // acceleration on top of what we already compute based
//                    // on how quickly the wheel is being turned, to apply
//                    // a longer increasing acceleration to continuous movement
//                    // in one direction.
//                    default:
//                        if (Math.abs(position) < SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD) {
//                            return movement;
//                        }
//                        movement += dir;
//                        position -= dir * SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD;
//                        float acc = acceleration;
//                        acc *= 1.1f;
//                        acceleration = acc < MAX_ACCELERATION ? acc : acceleration;
//                        break;
//                }
//            } while (true);
//        }
//    }
//
//    /**
//     * Creates dpad events from unhandled joystick movements.
//     */
//    final class SyntheticJoystickHandler extends Handler {
//        private final static String TAG = "SyntheticJoystickHandler";
//        private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 1;
//        private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 2;
//
//        private int mLastXDirection;
//        private int mLastYDirection;
//        private int mLastXKeyCode;
//        private int mLastYKeyCode;
//
//        public SyntheticJoystickHandler() {
//            super(true);
//        }
//
//        @Override
//        public void handleMessage(Message msg) {
//            switch (msg.what) {
//                case MSG_ENQUEUE_X_AXIS_KEY_REPEAT:
//                case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: {
//                    KeyEvent oldEvent = (KeyEvent)msg.obj;
//                    KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent,
//                            SystemClock.uptimeMillis(),
//                            oldEvent.getRepeatCount() + 1);
//                    if (mAttachInfo.mHasWindowFocus) {
//                        enqueueInputEvent(e);
//                        Message m = obtainMessage(msg.what, e);
//                        m.setAsynchronous(true);
//                        sendMessageDelayed(m, ViewConfiguration.getKeyRepeatDelay());
//                    }
//                } break;
//            }
//        }
//
//        public void process(MotionEvent event) {
//            switch(event.getActionMasked()) {
//            case MotionEvent.ACTION_CANCEL:
//                cancel(event);
//                break;
//            case MotionEvent.ACTION_MOVE:
//                update(event, true);
//                break;
//            default:
//                Log.w(TAG, "Unexpected action: " + event.getActionMasked());
//            }
//        }
//
//        private void cancel(MotionEvent event) {
//            removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT);
//            removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT);
//            update(event, false);
//        }
//
//        private void update(MotionEvent event, boolean synthesizeNewKeys) {
//            final long time = event.getEventTime();
//            final int metaState = event.getMetaState();
//            final int deviceId = event.getDeviceId();
//            final int source = event.getSource();
//
//            int xDirection = joystickAxisValueToDirection(
//                    event.getAxisValue(MotionEvent.AXIS_HAT_X));
//            if (xDirection == 0) {
//                xDirection = joystickAxisValueToDirection(event.getX());
//            }
//
//            int yDirection = joystickAxisValueToDirection(
//                    event.getAxisValue(MotionEvent.AXIS_HAT_Y));
//            if (yDirection == 0) {
//                yDirection = joystickAxisValueToDirection(event.getY());
//            }
//
//            if (xDirection != mLastXDirection) {
//                if (mLastXKeyCode != 0) {
//                    removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT);
//                    enqueueInputEvent(new KeyEvent(time, time,
//                            KeyEvent.ACTION_UP, mLastXKeyCode, 0, metaState,
//                            deviceId, 0, KeyEvent.FLAG_FALLBACK, source));
//                    mLastXKeyCode = 0;
//                }
//
//                mLastXDirection = xDirection;
//
//                if (xDirection != 0 && synthesizeNewKeys) {
//                    mLastXKeyCode = xDirection > 0
//                            ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT;
//                    final KeyEvent e = new KeyEvent(time, time,
//                            KeyEvent.ACTION_DOWN, mLastXKeyCode, 0, metaState,
//                            deviceId, 0, KeyEvent.FLAG_FALLBACK, source);
//                    enqueueInputEvent(e);
//                    Message m = obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e);
//                    m.setAsynchronous(true);
//                    sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout());
//                }
//            }
//
//            if (yDirection != mLastYDirection) {
//                if (mLastYKeyCode != 0) {
//                    removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT);
//                    enqueueInputEvent(new KeyEvent(time, time,
//                            KeyEvent.ACTION_UP, mLastYKeyCode, 0, metaState,
//                            deviceId, 0, KeyEvent.FLAG_FALLBACK, source));
//                    mLastYKeyCode = 0;
//                }
//
//                mLastYDirection = yDirection;
//
//                if (yDirection != 0 && synthesizeNewKeys) {
//                    mLastYKeyCode = yDirection > 0
//                            ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP;
//                    final KeyEvent e = new KeyEvent(time, time,
//                            KeyEvent.ACTION_DOWN, mLastYKeyCode, 0, metaState,
//                            deviceId, 0, KeyEvent.FLAG_FALLBACK, source);
//                    enqueueInputEvent(e);
//                    Message m = obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e);
//                    m.setAsynchronous(true);
//                    sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout());
//                }
//            }
//        }
//
//        private int joystickAxisValueToDirection(float value) {
//            if (value >= 0.5f) {
//                return 1;
//            } else if (value <= -0.5f) {
//                return -1;
//            } else {
//                return 0;
//            }
//        }
//    }
//
//    /**
//     * Creates dpad events from unhandled touch navigation movements.
//     */
//    final class SyntheticTouchNavigationHandler extends Handler {
//        private static final String LOCAL_TAG = "SyntheticTouchNavigationHandler";
//        private static final boolean LOCAL_DEBUG = false;
//
//        // Assumed nominal width and height in millimeters of a touch navigation pad,
//        // if no resolution information is available from the input system.
//        private static final float DEFAULT_WIDTH_MILLIMETERS = 48;
//        private static final float DEFAULT_HEIGHT_MILLIMETERS = 48;
//
//        /* TODO: These constants should eventually be moved to ViewConfiguration. */
//
//        // The nominal distance traveled to move by one unit.
//        private static final int TICK_DISTANCE_MILLIMETERS = 12;
//
//        // Minimum and maximum fling velocity in ticks per second.
//        // The minimum velocity should be set such that we perform enough ticks per
//        // second that the fling appears to be fluid.  For example, if we set the minimum
//        // to 2 ticks per second, then there may be up to half a second delay between the next
//        // to last and last ticks which is noticeably discrete and jerky.  This value should
//        // probably not be set to anything less than about 4.
//        // If fling accuracy is a problem then consider tuning the tick distance instead.
//        private static final float MIN_FLING_VELOCITY_TICKS_PER_SECOND = 6f;
//        private static final float MAX_FLING_VELOCITY_TICKS_PER_SECOND = 20f;
//
//        // Fling velocity decay factor applied after each new key is emitted.
//        // This parameter controls the deceleration and overall duration of the fling.
//        // The fling stops automatically when its velocity drops below the minimum
//        // fling velocity defined above.
//        private static final float FLING_TICK_DECAY = 0.8f;
//
//        /* The input device that we are tracking. */
//
//        private int mCurrentDeviceId = -1;
//        private int mCurrentSource;
//        private boolean mCurrentDeviceSupported;
//
//        /* Configuration for the current input device. */
//
//        // The scaled tick distance.  A movement of this amount should generally translate
//        // into a single dpad event in a given direction.
//        private float mConfigTickDistance;
//
//        // The minimum and maximum scaled fling velocity.
//        private float mConfigMinFlingVelocity;
//        private float mConfigMaxFlingVelocity;
//
//        /* Tracking state. */
//
//        // The velocity tracker for detecting flings.
//        private VelocityTracker mVelocityTracker;
//
//        // The active pointer id, or -1 if none.
//        private int mActivePointerId = -1;
//
//        // Location where tracking started.
//        private float mStartX;
//        private float mStartY;
//
//        // Most recently observed position.
//        private float mLastX;
//        private float mLastY;
//
//        // Accumulated movement delta since the last direction key was sent.
//        private float mAccumulatedX;
//        private float mAccumulatedY;
//
//        // Set to true if any movement was delivered to the app.
//        // Implies that tap slop was exceeded.
//        private boolean mConsumedMovement;
//
//        // The most recently sent key down event.
//        // The keycode remains set until the direction changes or a fling ends
//        // so that repeated key events may be generated as required.
//        private long mPendingKeyDownTime;
//        private int mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN;
//        private int mPendingKeyRepeatCount;
//        private int mPendingKeyMetaState;
//
//        // The current fling velocity while a fling is in progress.
//        private boolean mFlinging;
//        private float mFlingVelocity;
//
//        public SyntheticTouchNavigationHandler() {
//            super(true);
//        }
//
//        public void process(MotionEvent event) {
//            // Update the current device information.
//            final long time = event.getEventTime();
//            final int deviceId = event.getDeviceId();
//            final int source = event.getSource();
//            if (mCurrentDeviceId != deviceId || mCurrentSource != source) {
//                finishKeys(time);
//                finishTracking(time);
//                mCurrentDeviceId = deviceId;
//                mCurrentSource = source;
//                mCurrentDeviceSupported = false;
//                InputDevice device = event.getDevice();
//                if (device != null) {
//                    // In order to support an input device, we must know certain
//                    // characteristics about it, such as its size and resolution.
//                    InputDevice.MotionRange xRange = device.getMotionRange(MotionEvent.AXIS_X);
//                    InputDevice.MotionRange yRange = device.getMotionRange(MotionEvent.AXIS_Y);
//                    if (xRange != null && yRange != null) {
//                        mCurrentDeviceSupported = true;
//
//                        // Infer the resolution if it not actually known.
//                        float xRes = xRange.getResolution();
//                        if (xRes <= 0) {
//                            xRes = xRange.getRange() / DEFAULT_WIDTH_MILLIMETERS;
//                        }
//                        float yRes = yRange.getResolution();
//                        if (yRes <= 0) {
//                            yRes = yRange.getRange() / DEFAULT_HEIGHT_MILLIMETERS;
//                        }
//                        float nominalRes = (xRes + yRes) * 0.5f;
//
//                        // Precompute all of the configuration thresholds we will need.
//                        mConfigTickDistance = TICK_DISTANCE_MILLIMETERS * nominalRes;
//                        mConfigMinFlingVelocity =
//                                MIN_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance;
//                        mConfigMaxFlingVelocity =
//                                MAX_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance;
//
//                        if (LOCAL_DEBUG) {
//                            Log.d(LOCAL_TAG, "Configured device " + mCurrentDeviceId
//                                    + " (" + Integer.toHexString(mCurrentSource) + "): "
//                                    + ", mConfigTickDistance=" + mConfigTickDistance
//                                    + ", mConfigMinFlingVelocity=" + mConfigMinFlingVelocity
//                                    + ", mConfigMaxFlingVelocity=" + mConfigMaxFlingVelocity);
//                        }
//                    }
//                }
//            }
//            if (!mCurrentDeviceSupported) {
//                return;
//            }
//
//            // Handle the event.
//            final int action = event.getActionMasked();
//            switch (action) {
//                case MotionEvent.ACTION_DOWN: {
//                    boolean caughtFling = mFlinging;
//                    finishKeys(time);
//                    finishTracking(time);
//                    mActivePointerId = event.getPointerId(0);
//                    mVelocityTracker = VelocityTracker.obtain();
//                    mVelocityTracker.addMovement(event);
//                    mStartX = event.getX();
//                    mStartY = event.getY();
//                    mLastX = mStartX;
//                    mLastY = mStartY;
//                    mAccumulatedX = 0;
//                    mAccumulatedY = 0;
//
//                    // If we caught a fling, then pretend that the tap slop has already
//                    // been exceeded to suppress taps whose only purpose is to stop the fling.
//                    mConsumedMovement = caughtFling;
//                    break;
//                }
//
//                case MotionEvent.ACTION_MOVE:
//                case MotionEvent.ACTION_UP: {
//                    if (mActivePointerId < 0) {
//                        break;
//                    }
//                    final int index = event.findPointerIndex(mActivePointerId);
//                    if (index < 0) {
//                        finishKeys(time);
//                        finishTracking(time);
//                        break;
//                    }
//
//                    mVelocityTracker.addMovement(event);
//                    final float x = event.getX(index);
//                    final float y = event.getY(index);
//                    mAccumulatedX += x - mLastX;
//                    mAccumulatedY += y - mLastY;
//                    mLastX = x;
//                    mLastY = y;
//
//                    // Consume any accumulated movement so far.
//                    final int metaState = event.getMetaState();
//                    consumeAccumulatedMovement(time, metaState);
//
//                    // Detect taps and flings.
//                    if (action == MotionEvent.ACTION_UP) {
//                        if (mConsumedMovement && mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) {
//                            // It might be a fling.
//                            mVelocityTracker.computeCurrentVelocity(1000, mConfigMaxFlingVelocity);
//                            final float vx = mVelocityTracker.getXVelocity(mActivePointerId);
//                            final float vy = mVelocityTracker.getYVelocity(mActivePointerId);
//                            if (!startFling(time, vx, vy)) {
//                                finishKeys(time);
//                            }
//                        }
//                        finishTracking(time);
//                    }
//                    break;
//                }
//
//                case MotionEvent.ACTION_CANCEL: {
//                    finishKeys(time);
//                    finishTracking(time);
//                    break;
//                }
//            }
//        }
//
//        public void cancel(MotionEvent event) {
//            if (mCurrentDeviceId == event.getDeviceId()
//                    && mCurrentSource == event.getSource()) {
//                final long time = event.getEventTime();
//                finishKeys(time);
//                finishTracking(time);
//            }
//        }
//
//        private void finishKeys(long time) {
//            cancelFling();
//            sendKeyUp(time);
//        }
//
//        private void finishTracking(long time) {
//            if (mActivePointerId >= 0) {
//                mActivePointerId = -1;
//                mVelocityTracker.recycle();
//                mVelocityTracker = null;
//            }
//        }
//
//        private void consumeAccumulatedMovement(long time, int metaState) {
//            final float absX = Math.abs(mAccumulatedX);
//            final float absY = Math.abs(mAccumulatedY);
//            if (absX >= absY) {
//                if (absX >= mConfigTickDistance) {
//                    mAccumulatedX = consumeAccumulatedMovement(time, metaState, mAccumulatedX,
//                            KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT);
//                    mAccumulatedY = 0;
//                    mConsumedMovement = true;
//                }
//            } else {
//                if (absY >= mConfigTickDistance) {
//                    mAccumulatedY = consumeAccumulatedMovement(time, metaState, mAccumulatedY,
//                            KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN);
//                    mAccumulatedX = 0;
//                    mConsumedMovement = true;
//                }
//            }
//        }
//
//        private float consumeAccumulatedMovement(long time, int metaState,
//                float accumulator, int negativeKeyCode, int positiveKeyCode) {
//            while (accumulator <= -mConfigTickDistance) {
//                sendKeyDownOrRepeat(time, negativeKeyCode, metaState);
//                accumulator += mConfigTickDistance;
//            }
//            while (accumulator >= mConfigTickDistance) {
//                sendKeyDownOrRepeat(time, positiveKeyCode, metaState);
//                accumulator -= mConfigTickDistance;
//            }
//            return accumulator;
//        }
//
//        private void sendKeyDownOrRepeat(long time, int keyCode, int metaState) {
//            if (mPendingKeyCode != keyCode) {
//                sendKeyUp(time);
//                mPendingKeyDownTime = time;
//                mPendingKeyCode = keyCode;
//                mPendingKeyRepeatCount = 0;
//            } else {
//                mPendingKeyRepeatCount += 1;
//            }
//            mPendingKeyMetaState = metaState;
//
//            // Note: Normally we would pass FLAG_LONG_PRESS when the repeat count is 1
//            // but it doesn't quite make sense when simulating the events in this way.
//            if (LOCAL_DEBUG) {
//                Log.d(LOCAL_TAG, "Sending key down: keyCode=" + mPendingKeyCode
//                        + ", repeatCount=" + mPendingKeyRepeatCount
//                        + ", metaState=" + Integer.toHexString(mPendingKeyMetaState));
//            }
//            enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time,
//                    KeyEvent.ACTION_DOWN, mPendingKeyCode, mPendingKeyRepeatCount,
//                    mPendingKeyMetaState, mCurrentDeviceId,
//                    KeyEvent.FLAG_FALLBACK, mCurrentSource));
//        }
//
//        private void sendKeyUp(long time) {
//            if (mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) {
//                if (LOCAL_DEBUG) {
//                    Log.d(LOCAL_TAG, "Sending key up: keyCode=" + mPendingKeyCode
//                            + ", metaState=" + Integer.toHexString(mPendingKeyMetaState));
//                }
//                enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time,
//                        KeyEvent.ACTION_UP, mPendingKeyCode, 0, mPendingKeyMetaState,
//                        mCurrentDeviceId, 0, KeyEvent.FLAG_FALLBACK,
//                        mCurrentSource));
//                mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN;
//            }
//        }
//
//        private boolean startFling(long time, float vx, float vy) {
//            if (LOCAL_DEBUG) {
//                Log.d(LOCAL_TAG, "Considering fling: vx=" + vx + ", vy=" + vy
//                        + ", min=" + mConfigMinFlingVelocity);
//            }
//
//            // Flings must be oriented in the same direction as the preceding movements.
//            switch (mPendingKeyCode) {
//                case KeyEvent.KEYCODE_DPAD_LEFT:
//                    if (-vx >= mConfigMinFlingVelocity
//                            && Math.abs(vy) < mConfigMinFlingVelocity) {
//                        mFlingVelocity = -vx;
//                        break;
//                    }
//                    return false;
//
//                case KeyEvent.KEYCODE_DPAD_RIGHT:
//                    if (vx >= mConfigMinFlingVelocity
//                            && Math.abs(vy) < mConfigMinFlingVelocity) {
//                        mFlingVelocity = vx;
//                        break;
//                    }
//                    return false;
//
//                case KeyEvent.KEYCODE_DPAD_UP:
//                    if (-vy >= mConfigMinFlingVelocity
//                            && Math.abs(vx) < mConfigMinFlingVelocity) {
//                        mFlingVelocity = -vy;
//                        break;
//                    }
//                    return false;
//
//                case KeyEvent.KEYCODE_DPAD_DOWN:
//                    if (vy >= mConfigMinFlingVelocity
//                            && Math.abs(vx) < mConfigMinFlingVelocity) {
//                        mFlingVelocity = vy;
//                        break;
//                    }
//                    return false;
//            }
//
//            // Post the first fling event.
//            mFlinging = postFling(time);
//            return mFlinging;
//        }
//
//        private boolean postFling(long time) {
//            // The idea here is to estimate the time when the pointer would have
//            // traveled one tick distance unit given the current fling velocity.
//            // This effect creates continuity of motion.
//            if (mFlingVelocity >= mConfigMinFlingVelocity) {
//                long delay = (long)(mConfigTickDistance / mFlingVelocity * 1000);
//                postAtTime(mFlingRunnable, time + delay);
//                if (LOCAL_DEBUG) {
//                    Log.d(LOCAL_TAG, "Posted fling: velocity="
//                            + mFlingVelocity + ", delay=" + delay
//                            + ", keyCode=" + mPendingKeyCode);
//                }
//                return true;
//            }
//            return false;
//        }
//
//        private void cancelFling() {
//            if (mFlinging) {
//                removeCallbacks(mFlingRunnable);
//                mFlinging = false;
//            }
//        }
//
//        private final Runnable mFlingRunnable = new Runnable() {
//            @Override
//            public void run() {
//                final long time = SystemClock.uptimeMillis();
//                sendKeyDownOrRepeat(time, mPendingKeyCode, mPendingKeyMetaState);
//                mFlingVelocity *= FLING_TICK_DECAY;
//                if (!postFling(time)) {
//                    mFlinging = false;
//                    finishKeys(time);
//                }
//            }
//        };
//    }
//
//    final class SyntheticKeyboardHandler {
//        public void process(KeyEvent event) {
//            if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) != 0) {
//                return;
//            }
//
//            final KeyCharacterMap kcm = event.getKeyCharacterMap();
//            final int keyCode = event.getKeyCode();
//            final int metaState = event.getMetaState();
//
//            // Check for fallback actions specified by the key character map.
//            KeyCharacterMap.FallbackAction fallbackAction =
//                    kcm.getFallbackAction(keyCode, metaState);
//            if (fallbackAction != null) {
//                final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK;
//                KeyEvent fallbackEvent = KeyEvent.obtain(
//                        event.getDownTime(), event.getEventTime(),
//                        event.getAction(), fallbackAction.keyCode,
//                        event.getRepeatCount(), fallbackAction.metaState,
//                        event.getDeviceId(), event.getScanCode(),
//                        flags, event.getSource(), null);
//                fallbackAction.recycle();
//                enqueueInputEvent(fallbackEvent);
//            }
//        }
//    }
//
//    /**
//     * Returns true if the key is used for keyboard navigation.
//     * @param keyEvent The key event.
//     * @return True if the key is used for keyboard navigation.
//     */
//    private static boolean isNavigationKey(KeyEvent keyEvent) {
//        switch (keyEvent.getKeyCode()) {
//        case KeyEvent.KEYCODE_DPAD_LEFT:
//        case KeyEvent.KEYCODE_DPAD_RIGHT:
//        case KeyEvent.KEYCODE_DPAD_UP:
//        case KeyEvent.KEYCODE_DPAD_DOWN:
//        case KeyEvent.KEYCODE_DPAD_CENTER:
//        case KeyEvent.KEYCODE_PAGE_UP:
//        case KeyEvent.KEYCODE_PAGE_DOWN:
//        case KeyEvent.KEYCODE_MOVE_HOME:
//        case KeyEvent.KEYCODE_MOVE_END:
//        case KeyEvent.KEYCODE_TAB:
//        case KeyEvent.KEYCODE_SPACE:
//        case KeyEvent.KEYCODE_ENTER:
//            return true;
//        }
//        return false;
//    }
//
//    /**
//     * Returns true if the key is used for typing.
//     * @param keyEvent The key event.
//     * @return True if the key is used for typing.
//     */
//    private static boolean isTypingKey(KeyEvent keyEvent) {
//        return keyEvent.getUnicodeChar() > 0;
//    }
//
//    /**
//     * See if the key event means we should leave touch mode (and leave touch mode if so).
//     * @param event The key event.
//     * @return Whether this key event should be consumed (meaning the act of
//     *   leaving touch mode alone is considered the event).
//     */
//    private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) {
//        // Only relevant in touch mode.
//        if (!mAttachInfo.mInTouchMode) {
//            return false;
//        }
//
//        // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP.
//        final int action = event.getAction();
//        if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) {
//            return false;
//        }
//
//        // Don't leave touch mode if the IME told us not to.
//        if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) {
//            return false;
//        }
//
//        // If the key can be used for keyboard navigation then leave touch mode
//        // and select a focused view if needed (in ensureTouchMode).
//        // When a new focused view is selected, we consume the navigation key because
//        // navigation doesn't make much sense unless a view already has focus so
//        // the key's purpose is to set focus.
//        if (isNavigationKey(event)) {
//            return ensureTouchMode(false);
//        }
//
//        // If the key can be used for typing then leave touch mode
//        // and select a focused view if needed (in ensureTouchMode).
//        // Always allow the view to process the typing key.
//        if (isTypingKey(event)) {
//            ensureTouchMode(false);
//            return false;
//        }
//
//        return false;
//    }
//
//    /* drag/drop */
//    void setLocalDragState(Object obj) {
//        mLocalDragState = obj;
//    }
//
//    private void handleDragEvent(DragEvent event) {
//        // From the root, only drag start/end/location are dispatched.  entered/exited
//        // are determined and dispatched by the viewgroup hierarchy, who then report
//        // that back here for ultimate reporting back to the framework.
//        if (mView != null && mAdded) {
//            final int what = event.mAction;
//
//            if (what == DragEvent.ACTION_DRAG_EXITED) {
//                // A direct EXITED event means that the window manager knows we've just crossed
//                // a window boundary, so the current drag target within this one must have
//                // just been exited.  Send it the usual notifications and then we're done
//                // for now.
//                mView.dispatchDragEvent(event);
//            } else {
//                // Cache the drag description when the operation starts, then fill it in
//                // on subsequent calls as a convenience
//                if (what == DragEvent.ACTION_DRAG_STARTED) {
//                    mCurrentDragView = null;    // Start the current-recipient tracking
//                    mDragDescription = event.mClipDescription;
//                } else {
//                    event.mClipDescription = mDragDescription;
//                }
//
//                // For events with a [screen] location, translate into window coordinates
//                if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) {
//                    mDragPoint.set(event.mX, event.mY);
//                    if (mTranslator != null) {
//                        mTranslator.translatePointInScreenToAppWindow(mDragPoint);
//                    }
//
//                    if (mCurScrollY != 0) {
//                        mDragPoint.offset(0, mCurScrollY);
//                    }
//
//                    event.mX = mDragPoint.x;
//                    event.mY = mDragPoint.y;
//                }
//
//                // Remember who the current drag target is pre-dispatch
//                final View prevDragView = mCurrentDragView;
//
//                // Now dispatch the drag/drop event
//                boolean result = mView.dispatchDragEvent(event);
//
//                // If we changed apparent drag target, tell the OS about it
//                if (prevDragView != mCurrentDragView) {
//                    try {
//                        if (prevDragView != null) {
//                            mWindowSession.dragRecipientExited(mWindow);
//                        }
//                        if (mCurrentDragView != null) {
//                            mWindowSession.dragRecipientEntered(mWindow);
//                        }
//                    } catch (RemoteException e) {
//                        Slog.e(TAG, "Unable to note drag target change");
//                    }
//                }
//
//                // Report the drop result when we're done
//                if (what == DragEvent.ACTION_DROP) {
//                    mDragDescription = null;
//                    try {
//                        Log.i(TAG, "Reporting drop result: " + result);
//                        mWindowSession.reportDropResult(mWindow, result);
//                    } catch (RemoteException e) {
//                        Log.e(TAG, "Unable to report drop result");
//                    }
//                }
//
//                // When the drag operation ends, release any local state object
//                // that may have been in use
//                if (what == DragEvent.ACTION_DRAG_ENDED) {
//                    setLocalDragState(null);
//                }
//            }
//        }
//        event.recycle();
//    }
//
//    public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) {
//        if (mSeq != args.seq) {
//            // The sequence has changed, so we need to update our value and make
//            // sure to do a traversal afterward so the window manager is given our
//            // most recent data.
//            mSeq = args.seq;
//            mAttachInfo.mForceReportNewAttributes = true;
//            scheduleTraversals();
//        }
//        if (mView == null) return;
//        if (args.localChanges != 0) {
//            mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges);
//        }
//
//        int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS;
//        if (visibility != mAttachInfo.mGlobalSystemUiVisibility) {
//            mAttachInfo.mGlobalSystemUiVisibility = visibility;
//            mView.dispatchSystemUiVisibilityChanged(visibility);
//        }
//    }
//
//    public void handleDispatchWindowAnimationStarted(int remainingFrameCount) {
//        if (!mDrawDuringWindowsAnimating && remainingFrameCount != -1) {
//            mRemainingFrameCount = remainingFrameCount;
//            mWindowsAnimating = true;
//        }
//    }
//
//    public void handleDispatchWindowAnimationStopped() {
//        if (mWindowsAnimating) {
//            mWindowsAnimating = false;
//            if (!mDirty.isEmpty() || mIsAnimating || mFullRedrawNeeded)  {
//                scheduleTraversals();
//            }
//        }
//    }
//
//    public void handleDispatchWindowShown() {
//        mAttachInfo.mTreeObserver.dispatchOnWindowShown();
//    }
//
//    public void getLastTouchPoint(Point outLocation) {
//        outLocation.x = (int) mLastTouchPoint.x;
//        outLocation.y = (int) mLastTouchPoint.y;
//    }
//
//    public void setDragFocus(View newDragTarget) {
//        if (mCurrentDragView != newDragTarget) {
//            mCurrentDragView = newDragTarget;
//        }
//    }
//
//    private AudioManager getAudioManager() {
//        if (mView == null) {
//            throw new IllegalStateException("getAudioManager called when there is no mView");
//        }
//        if (mAudioManager == null) {
//            mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE);
//        }
//        return mAudioManager;
//    }
//
//    public AccessibilityInteractionController getAccessibilityInteractionController() {
//        if (mView == null) {
//            throw new IllegalStateException("getAccessibilityInteractionController"
//                    + " called when there is no mView");
//        }
//        if (mAccessibilityInteractionController == null) {
//            mAccessibilityInteractionController = new AccessibilityInteractionController(this);
//        }
//        return mAccessibilityInteractionController;
//    }
//
//    private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility,
//            boolean insetsPending) throws RemoteException {
//
//        float appScale = mAttachInfo.mApplicationScale;
//        boolean restore = false;
//        if (params != null && mTranslator != null) {
//            restore = true;
//            params.backup();
//            mTranslator.translateWindowLayout(params);
//        }
//        if (params != null) {
//            if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params);
//        }
//        mPendingConfiguration.seq = 0;
//        //Log.d(TAG, ">>>>>> CALLING relayout");
//        if (params != null && mOrigWindowType != params.type) {
//            // For compatibility with old apps, don't crash here.
//            if (mTargetSdkVersion < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
//                Slog.w(TAG, "Window type can not be changed after "
//                        + "the window is added; ignoring change of " + mView);
//                params.type = mOrigWindowType;
//            }
//        }
//        int relayoutResult = mWindowSession.relayout(
//                mWindow, mSeq, params,
//                (int) (mView.getMeasuredWidth() * appScale + 0.5f),
//                (int) (mView.getMeasuredHeight() * appScale + 0.5f),
//                viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0,
//                mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets,
//                mPendingStableInsets, mPendingOutsets, mPendingConfiguration, mSurface);
//        //Log.d(TAG, "<<<<<< BACK FROM relayout");
//        if (restore) {
//            params.restore();
//        }
//
//        if (mTranslator != null) {
//            mTranslator.translateRectInScreenToAppWinFrame(mWinFrame);
//            mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets);
//            mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets);
//            mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets);
//            mTranslator.translateRectInScreenToAppWindow(mPendingStableInsets);
//        }
//        return relayoutResult;
//    }
//
//    /**
//     * {@inheritDoc}
//     */
//    @Override
//    public void playSoundEffect(int effectId) {
//        checkThread();
//
//        try {
//            final AudioManager audioManager = getAudioManager();
//
//            switch (effectId) {
//                case SoundEffectConstants.CLICK:
//                    audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK);
//                    return;
//                case SoundEffectConstants.NAVIGATION_DOWN:
//                    audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN);
//                    return;
//                case SoundEffectConstants.NAVIGATION_LEFT:
//                    audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT);
//                    return;
//                case SoundEffectConstants.NAVIGATION_RIGHT:
//                    audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT);
//                    return;
//                case SoundEffectConstants.NAVIGATION_UP:
//                    audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP);
//                    return;
//                default:
//                    throw new IllegalArgumentException("unknown effect id " + effectId +
//                            " not defined in " + SoundEffectConstants.class.getCanonicalName());
//            }
//        } catch (IllegalStateException e) {
//            // Exception thrown by getAudioManager() when mView is null
//            Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e);
//            e.printStackTrace();
//        }
//    }
//
//    /**
//     * {@inheritDoc}
//     */
//    @Override
//    public boolean performHapticFeedback(int effectId, boolean always) {
//        try {
//            return mWindowSession.performHapticFeedback(mWindow, effectId, always);
//        } catch (RemoteException e) {
//            return false;
//        }
//    }
//
//    /**
//     * {@inheritDoc}
//     */
//    @Override
//    public View focusSearch(View focused, int direction) {
//        checkThread();
//        if (!(mView instanceof ViewGroup)) {
//            return null;
//        }
//        return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction);
//    }
//
//    public void debug() {
//        mView.debug();
//    }
//
//    public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
//        String innerPrefix = prefix + "  ";
//        writer.print(prefix); writer.println("ViewRoot:");
//        writer.print(innerPrefix); writer.print("mAdded="); writer.print(mAdded);
//                writer.print(" mRemoved="); writer.println(mRemoved);
//        writer.print(innerPrefix); writer.print("mConsumeBatchedInputScheduled=");
//                writer.println(mConsumeBatchedInputScheduled);
//        writer.print(innerPrefix); writer.print("mConsumeBatchedInputImmediatelyScheduled=");
//                writer.println(mConsumeBatchedInputImmediatelyScheduled);
//        writer.print(innerPrefix); writer.print("mPendingInputEventCount=");
//                writer.println(mPendingInputEventCount);
//        writer.print(innerPrefix); writer.print("mProcessInputEventsScheduled=");
//                writer.println(mProcessInputEventsScheduled);
//        writer.print(innerPrefix); writer.print("mTraversalScheduled=");
//                writer.print(mTraversalScheduled);
//        if (mTraversalScheduled) {
//            writer.print(" (barrier="); writer.print(mTraversalBarrier); writer.println(")");
//        } else {
//            writer.println();
//        }
//        mFirstInputStage.dump(innerPrefix, writer);
//
//        mChoreographer.dump(prefix, writer);
//
//        writer.print(prefix); writer.println("View Hierarchy:");
//        dumpViewHierarchy(innerPrefix, writer, mView);
//    }
//
//    private void dumpViewHierarchy(String prefix, PrintWriter writer, View view) {
//        writer.print(prefix);
//        if (view == null) {
//            writer.println("null");
//            return;
//        }
//        writer.println(view.toString());
//        if (!(view instanceof ViewGroup)) {
//            return;
//        }
//        ViewGroup grp = (ViewGroup)view;
//        final int N = grp.getChildCount();
//        if (N <= 0) {
//            return;
//        }
//        prefix = prefix + "  ";
//        for (int i=0; i<N; i++) {
//            dumpViewHierarchy(prefix, writer, grp.getChildAt(i));
//        }
//    }
//
//    public void dumpGfxInfo(int[] info) {
//        info[0] = info[1] = 0;
//        if (mView != null) {
//            getGfxInfo(mView, info);
//        }
//    }
//
//    private static void getGfxInfo(View view, int[] info) {
//        RenderNode renderNode = view.mRenderNode;
//        info[0]++;
//        if (renderNode != null) {
//            info[1] += renderNode.getDebugSize();
//        }
//
//        if (view instanceof ViewGroup) {
//            ViewGroup group = (ViewGroup) view;
//
//            int count = group.getChildCount();
//            for (int i = 0; i < count; i++) {
//                getGfxInfo(group.getChildAt(i), info);
//            }
//        }
//    }
//
//    /**
//     * @param immediate True, do now if not in traversal. False, put on queue and do later.
//     * @return True, request has been queued. False, request has been completed.
//     */
//    boolean die(boolean immediate) {
//        // Make sure we do execute immediately if we are in the middle of a traversal or the damage
//        // done by dispatchDetachedFromWindow will cause havoc on return.
//        if (immediate && !mIsInTraversal) {
//            doDie();
//            return false;
//        }
//
//        if (!mIsDrawing) {
//            destroyHardwareRenderer();
//        } else {
//            Log.e(TAG, "Attempting to destroy the window while drawing!\n" +
//                    "  window=" + this + ", title=" + mWindowAttributes.getTitle());
//        }
//        mHandler.sendEmptyMessage(MSG_DIE);
//        return true;
//    }
//
//    void doDie() {
//        checkThread();
//        if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface);
//        synchronized (this) {
//            if (mRemoved) {
//                return;
//            }
//            mRemoved = true;
//            if (mAdded) {
//                dispatchDetachedFromWindow();
//            }
//
//            if (mAdded && !mFirst) {
//                destroyHardwareRenderer();
//
//                if (mView != null) {
//                    int viewVisibility = mView.getVisibility();
//                    boolean viewVisibilityChanged = mViewVisibility != viewVisibility;
//                    if (mWindowAttributesChanged || viewVisibilityChanged) {
//                        // If layout params have been changed, first give them
//                        // to the window manager to make sure it has the correct
//                        // animation info.
//                        try {
//                            if ((relayoutWindow(mWindowAttributes, viewVisibility, false)
//                                    & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) {
//                                mWindowSession.finishDrawing(mWindow);
//                            }
//                        } catch (RemoteException e) {
//                        }
//                    }
//
//                    mSurface.release();
//                }
//            }
//
//            mAdded = false;
//        }
//        WindowManagerGlobal.getInstance().doRemoveView(this);
//    }
//
//    public void requestUpdateConfiguration(Configuration config) {
//        Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config);
//        mHandler.sendMessage(msg);
//    }
//
//    public void loadSystemProperties() {
//        mHandler.post(new Runnable() {
//            @Override
//            public void run() {
//                // Profiling
//                mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false);
//                profileRendering(mAttachInfo.mHasWindowFocus);
//
//                // Hardware rendering
//                if (mAttachInfo.mHardwareRenderer != null) {
//                    if (mAttachInfo.mHardwareRenderer.loadSystemProperties()) {
//                        invalidate();
//                    }
//                }
//
//                // Layout debugging
//                boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false);
//                if (layout != mAttachInfo.mDebugLayout) {
//                    mAttachInfo.mDebugLayout = layout;
//                    if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) {
//                        mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200);
//                    }
//                }
//            }
//        });
//    }
//
//    private void destroyHardwareRenderer() {
//        HardwareRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer;
//
//        if (hardwareRenderer != null) {
//            if (mView != null) {
//                hardwareRenderer.destroyHardwareResources(mView);
//            }
//            hardwareRenderer.destroy();
//            hardwareRenderer.setRequested(false);
//
//            mAttachInfo.mHardwareRenderer = null;
//            mAttachInfo.mHardwareAccelerated = false;
//        }
//    }
//
//    public void dispatchFinishInputConnection(InputConnection connection) {
//        Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection);
//        mHandler.sendMessage(msg);
//    }
//
//    public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets,
//            Rect visibleInsets, Rect stableInsets, Rect outsets, boolean reportDraw,
//            Configuration newConfig) {
//        if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString()
//                + " contentInsets=" + contentInsets.toShortString()
//                + " visibleInsets=" + visibleInsets.toShortString()
//                + " reportDraw=" + reportDraw);
//        Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED);
//        if (mTranslator != null) {
//            mTranslator.translateRectInScreenToAppWindow(frame);
//            mTranslator.translateRectInScreenToAppWindow(overscanInsets);
//            mTranslator.translateRectInScreenToAppWindow(contentInsets);
//            mTranslator.translateRectInScreenToAppWindow(visibleInsets);
//        }
//        SomeArgs args = SomeArgs.obtain();
//        final boolean sameProcessCall = (Binder.getCallingPid() == Process.myPid());
//        args.arg1 = sameProcessCall ? new Rect(frame) : frame;
//        args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets;
//        args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets;
//        args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig;
//        args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets;
//        args.arg6 = sameProcessCall ? new Rect(stableInsets) : stableInsets;
//        args.arg7 = sameProcessCall ? new Rect(outsets) : outsets;
//        msg.obj = args;
//        mHandler.sendMessage(msg);
//    }
//
//    public void dispatchMoved(int newX, int newY) {
//        if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY);
//        if (mTranslator != null) {
//            PointF point = new PointF(newX, newY);
//            mTranslator.translatePointInScreenToAppWindow(point);
//            newX = (int) (point.x + 0.5);
//            newY = (int) (point.y + 0.5);
//        }
//        Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY);
//        mHandler.sendMessage(msg);
//    }
//
//    /**
//     * Represents a pending input event that is waiting in a queue.
//     *
//     * Input events are processed in serial order by the timestamp specified by
//     * {@link InputEvent#getEventTimeNano()}.  In general, the input dispatcher delivers
//     * one input event to the application at a time and waits for the application
//     * to finish handling it before delivering the next one.
//     *
//     * However, because the application or IME can synthesize and inject multiple
//     * key events at a time without going through the input dispatcher, we end up
//     * needing a queue on the application's side.
//     */
//    private static final class QueuedInputEvent {
//        public static final int FLAG_DELIVER_POST_IME = 1 << 0;
//        public static final int FLAG_DEFERRED = 1 << 1;
//        public static final int FLAG_FINISHED = 1 << 2;
//        public static final int FLAG_FINISHED_HANDLED = 1 << 3;
//        public static final int FLAG_RESYNTHESIZED = 1 << 4;
//        public static final int FLAG_UNHANDLED = 1 << 5;
//
//        public QueuedInputEvent mNext;
//
//        public InputEvent mEvent;
//        public InputEventReceiver mReceiver;
//        public int mFlags;
//
//        public boolean shouldSkipIme() {
//            if ((mFlags & FLAG_DELIVER_POST_IME) != 0) {
//                return true;
//            }
//            return mEvent instanceof MotionEvent
//                    && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER);
//        }
//
//        public boolean shouldSendToSynthesizer() {
//            if ((mFlags & FLAG_UNHANDLED) != 0) {
//                return true;
//            }
//
//            return false;
//        }
//
//        @Override
//        public String toString() {
//            StringBuilder sb = new StringBuilder("QueuedInputEvent{flags=");
//            boolean hasPrevious = false;
//            hasPrevious = flagToString("DELIVER_POST_IME", FLAG_DELIVER_POST_IME, hasPrevious, sb);
//            hasPrevious = flagToString("DEFERRED", FLAG_DEFERRED, hasPrevious, sb);
//            hasPrevious = flagToString("FINISHED", FLAG_FINISHED, hasPrevious, sb);
//            hasPrevious = flagToString("FINISHED_HANDLED", FLAG_FINISHED_HANDLED, hasPrevious, sb);
//            hasPrevious = flagToString("RESYNTHESIZED", FLAG_RESYNTHESIZED, hasPrevious, sb);
//            hasPrevious = flagToString("UNHANDLED", FLAG_UNHANDLED, hasPrevious, sb);
//            if (!hasPrevious) {
//                sb.append("0");
//            }
//            sb.append(", hasNextQueuedEvent=" + (mEvent != null ? "true" : "false"));
//            sb.append(", hasInputEventReceiver=" + (mReceiver != null ? "true" : "false"));
//            sb.append(", mEvent=" + mEvent + "}");
//            return sb.toString();
//        }
//
//        private boolean flagToString(String name, int flag,
//                boolean hasPrevious, StringBuilder sb) {
//            if ((mFlags & flag) != 0) {
//                if (hasPrevious) {
//                    sb.append("|");
//                }
//                sb.append(name);
//                return true;
//            }
//            return hasPrevious;
//        }
//    }
//
//    private QueuedInputEvent obtainQueuedInputEvent(InputEvent event,
//            InputEventReceiver receiver, int flags) {
//        QueuedInputEvent q = mQueuedInputEventPool;
//        if (q != null) {
//            mQueuedInputEventPoolSize -= 1;
//            mQueuedInputEventPool = q.mNext;
//            q.mNext = null;
//        } else {
//            q = new QueuedInputEvent();
//        }
//
//        q.mEvent = event;
//        q.mReceiver = receiver;
//        q.mFlags = flags;
//        return q;
//    }
//
//    private void recycleQueuedInputEvent(QueuedInputEvent q) {
//        q.mEvent = null;
//        q.mReceiver = null;
//
//        if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) {
//            mQueuedInputEventPoolSize += 1;
//            q.mNext = mQueuedInputEventPool;
//            mQueuedInputEventPool = q;
//        }
//    }
//
//    void enqueueInputEvent(InputEvent event) {
//        enqueueInputEvent(event, null, 0, false);
//    }
//
//    void enqueueInputEvent(InputEvent event,
//            InputEventReceiver receiver, int flags, boolean processImmediately) {
//        adjustInputEventForCompatibility(event);
//        QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags);
//
//        // Always enqueue the input event in order, regardless of its time stamp.
//        // We do this because the application or the IME may inject key events
//        // in response to touch events and we want to ensure that the injected keys
//        // are processed in the order they were received and we cannot trust that
//        // the time stamp of injected events are monotonic.
//        QueuedInputEvent last = mPendingInputEventTail;
//        if (last == null) {
//            mPendingInputEventHead = q;
//            mPendingInputEventTail = q;
//        } else {
//            last.mNext = q;
//            mPendingInputEventTail = q;
//        }
//        mPendingInputEventCount += 1;
//        Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName,
//                mPendingInputEventCount);
//
//        if (processImmediately) {
//            doProcessInputEvents();
//        } else {
//            scheduleProcessInputEvents();
//        }
//    }
//
//    private void scheduleProcessInputEvents() {
//        if (!mProcessInputEventsScheduled) {
//            mProcessInputEventsScheduled = true;
//            Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS);
//            msg.setAsynchronous(true);
//            mHandler.sendMessage(msg);
//        }
//    }
//
//    void doProcessInputEvents() {
//        // Deliver all pending input events in the queue.
//        while (mPendingInputEventHead != null) {
//            QueuedInputEvent q = mPendingInputEventHead;
//            mPendingInputEventHead = q.mNext;
//            if (mPendingInputEventHead == null) {
//                mPendingInputEventTail = null;
//            }
//            q.mNext = null;
//
//            mPendingInputEventCount -= 1;
//            Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName,
//                    mPendingInputEventCount);
//
//            long eventTime = q.mEvent.getEventTimeNano();
//            long oldestEventTime = eventTime;
//            if (q.mEvent instanceof MotionEvent) {
//                MotionEvent me = (MotionEvent)q.mEvent;
//                if (me.getHistorySize() > 0) {
//                    oldestEventTime = me.getHistoricalEventTimeNano(0);
//                }
//            }
//            mChoreographer.mFrameInfo.updateInputEventTime(eventTime, oldestEventTime);
//
//            deliverInputEvent(q);
//        }
//
//        // We are done processing all input events that we can process right now
//        // so we can clear the pending flag immediately.
//        if (mProcessInputEventsScheduled) {
//            mProcessInputEventsScheduled = false;
//            mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS);
//        }
//    }
//
//    private void deliverInputEvent(QueuedInputEvent q) {
//        Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent",
//                q.mEvent.getSequenceNumber());
//        if (mInputEventConsistencyVerifier != null) {
//            mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0);
//        }
//
//        InputStage stage;
//        if (q.shouldSendToSynthesizer()) {
//            stage = mSyntheticInputStage;
//        } else {
//            stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage;
//        }
//
//        if (stage != null) {
//            stage.deliver(q);
//        } else {
//            finishInputEvent(q);
//        }
//    }
//
//    private void finishInputEvent(QueuedInputEvent q) {
//        Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, "deliverInputEvent",
//                q.mEvent.getSequenceNumber());
//
//        if (q.mReceiver != null) {
//            boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0;
//            q.mReceiver.finishInputEvent(q.mEvent, handled);
//        } else {
//            q.mEvent.recycleIfNeededAfterDispatch();
//        }
//
//        recycleQueuedInputEvent(q);
//    }
//
//    private void adjustInputEventForCompatibility(InputEvent e) {
//        if (mTargetSdkVersion < Build.VERSION_CODES.M && e instanceof MotionEvent) {
//            MotionEvent motion = (MotionEvent) e;
//            final int mask =
//                MotionEvent.BUTTON_STYLUS_PRIMARY | MotionEvent.BUTTON_STYLUS_SECONDARY;
//            final int buttonState = motion.getButtonState();
//            final int compatButtonState = (buttonState & mask) >> 4;
//            if (compatButtonState != 0) {
//                motion.setButtonState(buttonState | compatButtonState);
//            }
//        }
//    }
//
//    static boolean isTerminalInputEvent(InputEvent event) {
//        if (event instanceof KeyEvent) {
//            final KeyEvent keyEvent = (KeyEvent)event;
//            return keyEvent.getAction() == KeyEvent.ACTION_UP;
//        } else {
//            final MotionEvent motionEvent = (MotionEvent)event;
//            final int action = motionEvent.getAction();
//            return action == MotionEvent.ACTION_UP
//                    || action == MotionEvent.ACTION_CANCEL
//                    || action == MotionEvent.ACTION_HOVER_EXIT;
//        }
//    }
//
//    void scheduleConsumeBatchedInput() {
//        if (!mConsumeBatchedInputScheduled) {
//            mConsumeBatchedInputScheduled = true;
//            mChoreographer.postCallback(Choreographer.CALLBACK_INPUT,
//                    mConsumedBatchedInputRunnable, null);
//        }
//    }
//
//    void unscheduleConsumeBatchedInput() {
//        if (mConsumeBatchedInputScheduled) {
//            mConsumeBatchedInputScheduled = false;
//            mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT,
//                    mConsumedBatchedInputRunnable, null);
//        }
//    }
//
//    void scheduleConsumeBatchedInputImmediately() {
//        if (!mConsumeBatchedInputImmediatelyScheduled) {
//            unscheduleConsumeBatchedInput();
//            mConsumeBatchedInputImmediatelyScheduled = true;
//            mHandler.post(mConsumeBatchedInputImmediatelyRunnable);
//        }
//    }
//
//    void doConsumeBatchedInput(long frameTimeNanos) {
//        if (mConsumeBatchedInputScheduled) {
//            mConsumeBatchedInputScheduled = false;
//            if (mInputEventReceiver != null) {
//                if (mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos)
//                        && frameTimeNanos != -1) {
//                    // If we consumed a batch here, we want to go ahead and schedule the
//                    // consumption of batched input events on the next frame. Otherwise, we would
//                    // wait until we have more input events pending and might get starved by other
//                    // things occurring in the process. If the frame time is -1, however, then
//                    // we're in a non-batching mode, so there's no need to schedule this.
//                    scheduleConsumeBatchedInput();
//                }
//            }
//            doProcessInputEvents();
//        }
//    }
//
//    final class TraversalRunnable implements Runnable {
//        @Override
//        public void run() {
//            doTraversal();
//        }
//    }
//    final TraversalRunnable mTraversalRunnable = new TraversalRunnable();
//
//    final class WindowInputEventReceiver extends InputEventReceiver {
//        public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) {
//            super(inputChannel, looper);
//        }
//
//        @Override
//        public void onInputEvent(InputEvent event) {
//            enqueueInputEvent(event, this, 0, true);
//        }
//
//        @Override
//        public void onBatchedInputEventPending() {
//            if (mUnbufferedInputDispatch) {
//                super.onBatchedInputEventPending();
//            } else {
//                scheduleConsumeBatchedInput();
//            }
//        }
//
//        @Override
//        public void dispose() {
//            unscheduleConsumeBatchedInput();
//            super.dispose();
//        }
//    }
//    WindowInputEventReceiver mInputEventReceiver;
//
//    final class ConsumeBatchedInputRunnable implements Runnable {
//        @Override
//        public void run() {
//            doConsumeBatchedInput(mChoreographer.getFrameTimeNanos());
//        }
//    }
//    final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable =
//            new ConsumeBatchedInputRunnable();
//    boolean mConsumeBatchedInputScheduled;
//
//    final class ConsumeBatchedInputImmediatelyRunnable implements Runnable {
//        @Override
//        public void run() {
//            doConsumeBatchedInput(-1);
//        }
//    }
//    final ConsumeBatchedInputImmediatelyRunnable mConsumeBatchedInputImmediatelyRunnable =
//            new ConsumeBatchedInputImmediatelyRunnable();
//    boolean mConsumeBatchedInputImmediatelyScheduled;
//
//    final class InvalidateOnAnimationRunnable implements Runnable {
//        private boolean mPosted;
//        private final ArrayList<View> mViews = new ArrayList<View>();
//        private final ArrayList<AttachInfo.InvalidateInfo> mViewRects =
//                new ArrayList<AttachInfo.InvalidateInfo>();
//        private View[] mTempViews;
//        private AttachInfo.InvalidateInfo[] mTempViewRects;
//
//        public void addView(View view) {
//            synchronized (this) {
//                mViews.add(view);
//                postIfNeededLocked();
//            }
//        }
//
//        public void addViewRect(AttachInfo.InvalidateInfo info) {
//            synchronized (this) {
//                mViewRects.add(info);
//                postIfNeededLocked();
//            }
//        }
//
//        public void removeView(View view) {
//            synchronized (this) {
//                mViews.remove(view);
//
//                for (int i = mViewRects.size(); i-- > 0; ) {
//                    AttachInfo.InvalidateInfo info = mViewRects.get(i);
//                    if (info.target == view) {
//                        mViewRects.remove(i);
//                        info.recycle();
//                    }
//                }
//
//                if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) {
//                    mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null);
//                    mPosted = false;
//                }
//            }
//        }
//
//        @Override
//        public void run() {
//            final int viewCount;
//            final int viewRectCount;
//            synchronized (this) {
//                mPosted = false;
//
//                viewCount = mViews.size();
//                if (viewCount != 0) {
//                    mTempViews = mViews.toArray(mTempViews != null
//                            ? mTempViews : new View[viewCount]);
//                    mViews.clear();
//                }
//
//                viewRectCount = mViewRects.size();
//                if (viewRectCount != 0) {
//                    mTempViewRects = mViewRects.toArray(mTempViewRects != null
//                            ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]);
//                    mViewRects.clear();
//                }
//            }
//
//            for (int i = 0; i < viewCount; i++) {
//                mTempViews[i].invalidate();
//                mTempViews[i] = null;
//            }
//
//            for (int i = 0; i < viewRectCount; i++) {
//                final View.AttachInfo.InvalidateInfo info = mTempViewRects[i];
//                info.target.invalidate(info.left, info.top, info.right, info.bottom);
//                info.recycle();
//            }
//        }
//
//        private void postIfNeededLocked() {
//            if (!mPosted) {
//                mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null);
//                mPosted = true;
//            }
//        }
//    }
//    final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable =
//            new InvalidateOnAnimationRunnable();
//
//    public void dispatchInvalidateDelayed(View view, long delayMilliseconds) {
//        Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view);
//        mHandler.sendMessageDelayed(msg, delayMilliseconds);
//    }
//
//    public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info,
//            long delayMilliseconds) {
//        final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info);
//        mHandler.sendMessageDelayed(msg, delayMilliseconds);
//    }
//
//    public void dispatchInvalidateOnAnimation(View view) {
//        mInvalidateOnAnimationRunnable.addView(view);
//    }
//
//    public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) {
//        mInvalidateOnAnimationRunnable.addViewRect(info);
//    }
//
//    public void cancelInvalidate(View view) {
//        mHandler.removeMessages(MSG_INVALIDATE, view);
//        // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning
//        // them to the pool
//        mHandler.removeMessages(MSG_INVALIDATE_RECT, view);
//        mInvalidateOnAnimationRunnable.removeView(view);
//    }
//
//    public void dispatchInputEvent(InputEvent event) {
//        dispatchInputEvent(event, null);
//    }
//
//    public void dispatchInputEvent(InputEvent event, InputEventReceiver receiver) {
//        SomeArgs args = SomeArgs.obtain();
//        args.arg1 = event;
//        args.arg2 = receiver;
//        Message msg = mHandler.obtainMessage(MSG_DISPATCH_INPUT_EVENT, args);
//        msg.setAsynchronous(true);
//        mHandler.sendMessage(msg);
//    }
//
//    public void synthesizeInputEvent(InputEvent event) {
//        Message msg = mHandler.obtainMessage(MSG_SYNTHESIZE_INPUT_EVENT, event);
//        msg.setAsynchronous(true);
//        mHandler.sendMessage(msg);
//    }
//
//    public void dispatchKeyFromIme(KeyEvent event) {
//        Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event);
//        msg.setAsynchronous(true);
//        mHandler.sendMessage(msg);
//    }
//
//    /**
//     * Reinject unhandled {@link InputEvent}s in order to synthesize fallbacks events.
//     *
//     * Note that it is the responsibility of the caller of this API to recycle the InputEvent it
//     * passes in.
//     */
//    public void dispatchUnhandledInputEvent(InputEvent event) {
//        if (event instanceof MotionEvent) {
//            event = MotionEvent.obtain((MotionEvent) event);
//        }
//        synthesizeInputEvent(event);
//    }
//
//    public void dispatchAppVisibility(boolean visible) {
//        Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY);
//        msg.arg1 = visible ? 1 : 0;
//        mHandler.sendMessage(msg);
//    }
//
//    public void dispatchGetNewSurface() {
//        Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE);
//        mHandler.sendMessage(msg);
//    }
//
//    public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) {
//        Message msg = Message.obtain();
//        msg.what = MSG_WINDOW_FOCUS_CHANGED;
//        msg.arg1 = hasFocus ? 1 : 0;
//        msg.arg2 = inTouchMode ? 1 : 0;
//        mHandler.sendMessage(msg);
//    }
//
//    public void dispatchWindowShown() {
//        mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_SHOWN);
//    }
//
//    public void dispatchCloseSystemDialogs(String reason) {
//        Message msg = Message.obtain();
//        msg.what = MSG_CLOSE_SYSTEM_DIALOGS;
//        msg.obj = reason;
//        mHandler.sendMessage(msg);
//    }
//
//    public void dispatchDragEvent(DragEvent event) {
//        final int what;
//        if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) {
//            what = MSG_DISPATCH_DRAG_LOCATION_EVENT;
//            mHandler.removeMessages(what);
//        } else {
//            what = MSG_DISPATCH_DRAG_EVENT;
//        }
//        Message msg = mHandler.obtainMessage(what, event);
//        mHandler.sendMessage(msg);
//    }
//
//    public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility,
//            int localValue, int localChanges) {
//        SystemUiVisibilityInfo args = new SystemUiVisibilityInfo();
//        args.seq = seq;
//        args.globalVisibility = globalVisibility;
//        args.localValue = localValue;
//        args.localChanges = localChanges;
//        mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args));
//    }
//
//    public void dispatchWindowAnimationStarted(int remainingFrameCount) {
//        mHandler.obtainMessage(MSG_DISPATCH_WINDOW_ANIMATION_STARTED,
//                remainingFrameCount, 0 /* unused */).sendToTarget();
//    }
//
//    public void dispatchWindowAnimationStopped() {
//        mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_ANIMATION_STOPPED);
//    }
//
//    public void dispatchCheckFocus() {
//        if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) {
//            // This will result in a call to checkFocus() below.
//            mHandler.sendEmptyMessage(MSG_CHECK_FOCUS);
//        }
//    }
//
//    /**
//     * Post a callback to send a
//     * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event.
//     * This event is send at most once every
//     * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}.
//     */
//    private void postSendWindowContentChangedCallback(View source, int changeType) {
//        if (mSendWindowContentChangedAccessibilityEvent == null) {
//            mSendWindowContentChangedAccessibilityEvent =
//                new SendWindowContentChangedAccessibilityEvent();
//        }
//        mSendWindowContentChangedAccessibilityEvent.runOrPost(source, changeType);
//    }
//
//    /**
//     * Remove a posted callback to send a
//     * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event.
//     */
//    private void removeSendWindowContentChangedCallback() {
//        if (mSendWindowContentChangedAccessibilityEvent != null) {
//            mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent);
//        }
//    }
//
//    @Override
//    public boolean showContextMenuForChild(View originalView) {
//        return false;
//    }
//
//    @Override
//    public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) {
//        return null;
//    }
//
//    @Override
//    public ActionMode startActionModeForChild(
//            View originalView, ActionMode.Callback callback, int type) {
//        return null;
//    }
//
//    @Override
//    public void createContextMenu(ContextMenu menu) {
//    }
//
//    @Override
//    public void childDrawableStateChanged(View child) {
//    }
//
//    @Override
//    public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) {
//        if (mView == null || mStopped || mPausedForTransition) {
//            return false;
//        }
//        // Intercept accessibility focus events fired by virtual nodes to keep
//        // track of accessibility focus position in such nodes.
//        final int eventType = event.getEventType();
//        switch (eventType) {
//            case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: {
//                final long sourceNodeId = event.getSourceNodeId();
//                final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId(
//                        sourceNodeId);
//                View source = mView.findViewByAccessibilityId(accessibilityViewId);
//                if (source != null) {
//                    AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider();
//                    if (provider != null) {
//                        final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId(
//                                sourceNodeId);
//                        final AccessibilityNodeInfo node;
//                        if (virtualNodeId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) {
//                            node = provider.createAccessibilityNodeInfo(
//                                    AccessibilityNodeProvider.HOST_VIEW_ID);
//                        } else {
//                            node = provider.createAccessibilityNodeInfo(virtualNodeId);
//                        }
//                        setAccessibilityFocus(source, node);
//                    }
//                }
//            } break;
//            case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: {
//                final long sourceNodeId = event.getSourceNodeId();
//                final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId(
//                        sourceNodeId);
//                View source = mView.findViewByAccessibilityId(accessibilityViewId);
//                if (source != null) {
//                    AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider();
//                    if (provider != null) {
//                        setAccessibilityFocus(null, null);
//                    }
//                }
//            } break;
//
//
//            case AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED: {
//                handleWindowContentChangedEvent(event);
//            } break;
//        }
//        mAccessibilityManager.sendAccessibilityEvent(event);
//        return true;
//    }
//
//    /**
//     * Updates the focused virtual view, when necessary, in response to a
//     * content changed event.
//     * <p>
//     * This is necessary to get updated bounds after a position change.
//     *
//     * @param event an accessibility event of type
//     *              {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED}
//     */
//    private void handleWindowContentChangedEvent(AccessibilityEvent event) {
//        final View focusedHost = mAccessibilityFocusedHost;
//        if (focusedHost == null || mAccessibilityFocusedVirtualView == null) {
//            // No virtual view focused, nothing to do here.
//            return;
//        }
//
//        final AccessibilityNodeProvider provider = focusedHost.getAccessibilityNodeProvider();
//        if (provider == null) {
//            // Error state: virtual view with no provider. Clear focus.
//            mAccessibilityFocusedHost = null;
//            mAccessibilityFocusedVirtualView = null;
//            focusedHost.clearAccessibilityFocusNoCallbacks();
//            return;
//        }
//
//        // We only care about change types that may affect the bounds of the
//        // focused virtual view.
//        final int changes = event.getContentChangeTypes();
//        if ((changes & AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE) == 0
//                && changes != AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED) {
//            return;
//        }
//
//        final long eventSourceNodeId = event.getSourceNodeId();
//        final int changedViewId = AccessibilityNodeInfo.getAccessibilityViewId(eventSourceNodeId);
//
//        // Search up the tree for subtree containment.
//        boolean hostInSubtree = false;
//        View root = mAccessibilityFocusedHost;
//        while (root != null && !hostInSubtree) {
//            if (changedViewId == root.getAccessibilityViewId()) {
//                hostInSubtree = true;
//            } else {
//                final ViewParent parent = root.getParent();
//                if (parent instanceof View) {
//                    root = (View) parent;
//                } else {
//                    root = null;
//                }
//            }
//        }
//
//        // We care only about changes in subtrees containing the host view.
//        if (!hostInSubtree) {
//            return;
//        }
//
//        final long focusedSourceNodeId = mAccessibilityFocusedVirtualView.getSourceNodeId();
//        int focusedChildId = AccessibilityNodeInfo.getVirtualDescendantId(focusedSourceNodeId);
//        if (focusedChildId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) {
//            // TODO: Should we clear the focused virtual view?
//            focusedChildId = AccessibilityNodeProvider.HOST_VIEW_ID;
//        }
//
//        // Refresh the node for the focused virtual view.
//        final Rect oldBounds = mTempRect;
//        mAccessibilityFocusedVirtualView.getBoundsInScreen(oldBounds);
//        mAccessibilityFocusedVirtualView = provider.createAccessibilityNodeInfo(focusedChildId);
//        if (mAccessibilityFocusedVirtualView == null) {
//            // Error state: The node no longer exists. Clear focus.
//            mAccessibilityFocusedHost = null;
//            focusedHost.clearAccessibilityFocusNoCallbacks();
//
//            // This will probably fail, but try to keep the provider's internal
//            // state consistent by clearing focus.
//            provider.performAction(focusedChildId,
//                    AccessibilityAction.ACTION_CLEAR_ACCESSIBILITY_FOCUS.getId(), null);
//            invalidateRectOnScreen(oldBounds);
//        } else {
//            // The node was refreshed, invalidate bounds if necessary.
//            final Rect newBounds = mAccessibilityFocusedVirtualView.getBoundsInScreen();
//            if (!oldBounds.equals(newBounds)) {
//                oldBounds.union(newBounds);
//                invalidateRectOnScreen(oldBounds);
//            }
//        }
//    }
//
//    @Override
//    public void notifySubtreeAccessibilityStateChanged(View child, View source, int changeType) {
//        postSendWindowContentChangedCallback(source, changeType);
//    }
//
//    @Override
//    public boolean canResolveLayoutDirection() {
//        return true;
//    }
//
//    @Override
//    public boolean isLayoutDirectionResolved() {
//        return true;
//    }
//
//    @Override
//    public int getLayoutDirection() {
//        return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT;
//    }
//
//    @Override
//    public boolean canResolveTextDirection() {
//        return true;
//    }
//
//    @Override
//    public boolean isTextDirectionResolved() {
//        return true;
//    }
//
//    @Override
//    public int getTextDirection() {
//        return View.TEXT_DIRECTION_RESOLVED_DEFAULT;
//    }
//
//    @Override
//    public boolean canResolveTextAlignment() {
//        return true;
//    }
//
//    @Override
//    public boolean isTextAlignmentResolved() {
//        return true;
//    }
//
//    @Override
//    public int getTextAlignment() {
//        return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT;
//    }
//
//    private View getCommonPredecessor(View first, View second) {
//        if (mTempHashSet == null) {
//            mTempHashSet = new HashSet<View>();
//        }
//        HashSet<View> seen = mTempHashSet;
//        seen.clear();
//        View firstCurrent = first;
//        while (firstCurrent != null) {
//            seen.add(firstCurrent);
//            ViewParent firstCurrentParent = firstCurrent.mParent;
//            if (firstCurrentParent instanceof View) {
//                firstCurrent = (View) firstCurrentParent;
//            } else {
//                firstCurrent = null;
//            }
//        }
//        View secondCurrent = second;
//        while (secondCurrent != null) {
//            if (seen.contains(secondCurrent)) {
//                seen.clear();
//                return secondCurrent;
//            }
//            ViewParent secondCurrentParent = secondCurrent.mParent;
//            if (secondCurrentParent instanceof View) {
//                secondCurrent = (View) secondCurrentParent;
//            } else {
//                secondCurrent = null;
//            }
//        }
//        seen.clear();
//        return null;
//    }
//
//    void checkThread() {
//        if (mThread != Thread.currentThread()) {
//            throw new CalledFromWrongThreadException(
//                    "Only the original thread that created a view hierarchy can touch its views.");
//        }
//    }
//
//    @Override
//    public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) {
//        // ViewAncestor never intercepts touch event, so this can be a no-op
//    }
//
//    @Override
//    public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) {
//        final boolean scrolled = scrollToRectOrFocus(rectangle, immediate);
//        if (rectangle != null) {
//            mTempRect.set(rectangle);
//            mTempRect.offset(0, -mCurScrollY);
//            mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop);
//            try {
//                mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect);
//            } catch (RemoteException re) {
//                /* ignore */
//            }
//        }
//        return scrolled;
//    }
//
//    @Override
//    public void childHasTransientStateChanged(View child, boolean hasTransientState) {
//        // Do nothing.
//    }
//
//    @Override
//    public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) {
//        return false;
//    }
//
//    @Override
//    public void onStopNestedScroll(View target) {
//    }
//
//    @Override
//    public void onNestedScrollAccepted(View child, View target, int nestedScrollAxes) {
//    }
//
//    @Override
//    public void onNestedScroll(View target, int dxConsumed, int dyConsumed,
//            int dxUnconsumed, int dyUnconsumed) {
//    }
//
//    @Override
//    public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) {
//    }
//
//    @Override
//    public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) {
//        return false;
//    }
//
//    @Override
//    public boolean onNestedPreFling(View target, float velocityX, float velocityY) {
//        return false;
//    }
//
//    @Override
//    public boolean onNestedPrePerformAccessibilityAction(View target, int action, Bundle args) {
//        return false;
//    }
//
//    void changeCanvasOpacity(boolean opaque) {
//        Log.d(TAG, "changeCanvasOpacity: opaque=" + opaque);
//        if (mAttachInfo.mHardwareRenderer != null) {
//            mAttachInfo.mHardwareRenderer.setOpaque(opaque);
//        }
//    }
//
//    class TakenSurfaceHolder extends BaseSurfaceHolder {
//        @Override
//        public boolean onAllowLockCanvas() {
//            return mDrawingAllowed;
//        }
//
//        @Override
//        public void onRelayoutContainer() {
//            // Not currently interesting -- from changing between fixed and layout size.
//        }
//
//        @Override
//        public void setFormat(int format) {
//            ((RootViewSurfaceTaker)mView).setSurfaceFormat(format);
//        }
//
//        @Override
//        public void setType(int type) {
//            ((RootViewSurfaceTaker)mView).setSurfaceType(type);
//        }
//
//        @Override
//        public void onUpdateSurface() {
//            // We take care of format and type changes on our own.
//            throw new IllegalStateException("Shouldn't be here");
//        }
//
//        @Override
//        public boolean isCreating() {
//            return mIsCreating;
//        }
//
//        @Override
//        public void setFixedSize(int width, int height) {
//            throw new UnsupportedOperationException(
//                    "Currently only support sizing from layout");
//        }
//
//        @Override
//        public void setKeepScreenOn(boolean screenOn) {
//            ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn);
//        }
//    }
//
//    static class W extends IWindow.Stub {
//        private final WeakReference<ViewRootImpl> mViewAncestor;
//        private final IWindowSession mWindowSession;
//
//        W(ViewRootImpl viewAncestor) {
//            mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor);
//            mWindowSession = viewAncestor.mWindowSession;
//        }
//
//        @Override
//        public void resized(Rect frame, Rect overscanInsets, Rect contentInsets,
//                Rect visibleInsets, Rect stableInsets, Rect outsets, boolean reportDraw,
//                Configuration newConfig) {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.dispatchResized(frame, overscanInsets, contentInsets,
//                        visibleInsets, stableInsets, outsets, reportDraw, newConfig);
//            }
//        }
//
//        @Override
//        public void moved(int newX, int newY) {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.dispatchMoved(newX, newY);
//            }
//        }
//
//        @Override
//        public void dispatchAppVisibility(boolean visible) {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.dispatchAppVisibility(visible);
//            }
//        }
//
//        @Override
//        public void dispatchGetNewSurface() {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.dispatchGetNewSurface();
//            }
//        }
//
//        @Override
//        public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.windowFocusChanged(hasFocus, inTouchMode);
//            }
//        }
//
//        private static int checkCallingPermission(String permission) {
//            try {
//                return ActivityManagerNative.getDefault().checkPermission(
//                        permission, Binder.getCallingPid(), Binder.getCallingUid());
//            } catch (RemoteException e) {
//                return PackageManager.PERMISSION_DENIED;
//            }
//        }
//
//        @Override
//        public void executeCommand(String command, String parameters, ParcelFileDescriptor out) {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                final View view = viewAncestor.mView;
//                if (view != null) {
//                    if (checkCallingPermission(Manifest.permission.DUMP) !=
//                            PackageManager.PERMISSION_GRANTED) {
//                        throw new SecurityException("Insufficient permissions to invoke"
//                                + " executeCommand() from pid=" + Binder.getCallingPid()
//                                + ", uid=" + Binder.getCallingUid());
//                    }
//
//                    OutputStream clientStream = null;
//                    try {
//                        clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out);
//                        ViewDebug.dispatchCommand(view, command, parameters, clientStream);
//                    } catch (IOException e) {
//                        e.printStackTrace();
//                    } finally {
//                        if (clientStream != null) {
//                            try {
//                                clientStream.close();
//                            } catch (IOException e) {
//                                e.printStackTrace();
//                            }
//                        }
//                    }
//                }
//            }
//        }
//
//        @Override
//        public void closeSystemDialogs(String reason) {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.dispatchCloseSystemDialogs(reason);
//            }
//        }
//
//        @Override
//        public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep,
//                boolean sync) {
//            if (sync) {
//                try {
//                    mWindowSession.wallpaperOffsetsComplete(asBinder());
//                } catch (RemoteException e) {
//                }
//            }
//        }
//
//        @Override
//        public void dispatchWallpaperCommand(String action, int x, int y,
//                int z, Bundle extras, boolean sync) {
//            if (sync) {
//                try {
//                    mWindowSession.wallpaperCommandComplete(asBinder(), null);
//                } catch (RemoteException e) {
//                }
//            }
//        }
//
//        /* Drag/drop */
//        @Override
//        public void dispatchDragEvent(DragEvent event) {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.dispatchDragEvent(event);
//            }
//        }
//
//        @Override
//        public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility,
//                int localValue, int localChanges) {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility,
//                        localValue, localChanges);
//            }
//        }
//
//        @Override
//        public void onAnimationStarted(int remainingFrameCount) {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.dispatchWindowAnimationStarted(remainingFrameCount);
//            }
//        }
//
//        @Override
//        public void onAnimationStopped() {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.dispatchWindowAnimationStopped();
//            }
//        }
//
//        @Override
//        public void dispatchWindowShown() {
//            final ViewRootImpl viewAncestor = mViewAncestor.get();
//            if (viewAncestor != null) {
//                viewAncestor.dispatchWindowShown();
//            }
//        }
//    }
//
//    public static final class CalledFromWrongThreadException extends AndroidRuntimeException {
//        public CalledFromWrongThreadException(String msg) {
//            super(msg);
//        }
//    }
//
//    static RunQueue getRunQueue() {
//        RunQueue rq = sRunQueues.get();
//        if (rq != null) {
//            return rq;
//        }
//        rq = new RunQueue();
//        sRunQueues.set(rq);
//        return rq;
//    }
//
//    /**
//     * The run queue is used to enqueue pending work from Views when no Handler is
//     * attached.  The work is executed during the next call to performTraversals on
//     * the thread.
//     * @hide
//     */
//    static final class RunQueue {
//        private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>();
//
//        void post(Runnable action) {
//            postDelayed(action, 0);
//        }
//
//        void postDelayed(Runnable action, long delayMillis) {
//            HandlerAction handlerAction = new HandlerAction();
//            handlerAction.action = action;
//            handlerAction.delay = delayMillis;
//
//            synchronized (mActions) {
//                mActions.add(handlerAction);
//            }
//        }
//
//        void removeCallbacks(Runnable action) {
//            final HandlerAction handlerAction = new HandlerAction();
//            handlerAction.action = action;
//
//            synchronized (mActions) {
//                final ArrayList<HandlerAction> actions = mActions;
//
//                while (actions.remove(handlerAction)) {
//                    // Keep going
//                }
//            }
//        }
//
//        void executeActions(Handler handler) {
//            synchronized (mActions) {
//                final ArrayList<HandlerAction> actions = mActions;
//                final int count = actions.size();
//
//                for (int i = 0; i < count; i++) {
//                    final HandlerAction handlerAction = actions.get(i);
//                    handler.postDelayed(handlerAction.action, handlerAction.delay);
//                }
//
//                actions.clear();
//            }
//        }
//
//        private static class HandlerAction {
//            Runnable action;
//            long delay;
//
//            @Override
//            public boolean equals(Object o) {
//                if (this == o) return true;
//                if (o == null || getClass() != o.getClass()) return false;
//
//                HandlerAction that = (HandlerAction) o;
//                return !(action != null ? !action.equals(that.action) : that.action != null);
//
//            }
//
//            @Override
//            public int hashCode() {
//                int result = action != null ? action.hashCode() : 0;
//                result = 31 * result + (int) (delay ^ (delay >>> 32));
//                return result;
//            }
//        }
//    }
//
//    /**
//     * Class for managing the accessibility interaction connection
//     * based on the global accessibility state.
//     */
//    final class AccessibilityInteractionConnectionManager
//            implements AccessibilityStateChangeListener {
//        @Override
//        public void onAccessibilityStateChanged(boolean enabled) {
//            if (enabled) {
//                ensureConnection();
//                if (mAttachInfo.mHasWindowFocus) {
//                    mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
//                    View focusedView = mView.findFocus();
//                    if (focusedView != null && focusedView != mView) {
//                        focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED);
//                    }
//                }
//            } else {
//                ensureNoConnection();
//                mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget();
//            }
//        }
//
//        public void ensureConnection() {
//            final boolean registered =
//                    mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID;
//            if (!registered) {
//                mAttachInfo.mAccessibilityWindowId =
//                        mAccessibilityManager.addAccessibilityInteractionConnection(mWindow,
//                                new AccessibilityInteractionConnection(ViewRootImpl.this));
//            }
//        }
//
//        public void ensureNoConnection() {
//            final boolean registered =
//                mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID;
//            if (registered) {
//                mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED_ITEM_ID;
//                mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow);
//            }
//        }
//    }
//
//    final class HighContrastTextManager implements HighTextContrastChangeListener {
//        HighContrastTextManager() {
//            mAttachInfo.mHighContrastText = mAccessibilityManager.isHighTextContrastEnabled();
//        }
//        @Override
//        public void onHighTextContrastStateChanged(boolean enabled) {
//            mAttachInfo.mHighContrastText = enabled;
//
//            // Destroy Displaylists so they can be recreated with high contrast recordings
//            destroyHardwareResources();
//
//            // Schedule redraw, which will rerecord + redraw all text
//            invalidate();
//        }
//    }
//
//    /**
//     * This class is an interface this ViewAncestor provides to the
//     * AccessibilityManagerService to the latter can interact with
//     * the view hierarchy in this ViewAncestor.
//     */
//    static final class AccessibilityInteractionConnection
//            extends IAccessibilityInteractionConnection.Stub {
//        private final WeakReference<ViewRootImpl> mViewRootImpl;
//
//        AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) {
//            mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl);
//        }
//
//        @Override
//        public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId,
//                Region interactiveRegion, int interactionId,
//                IAccessibilityInteractionConnectionCallback callback, int flags,
//                int interrogatingPid, long interrogatingTid, MagnificationSpec spec) {
//            ViewRootImpl viewRootImpl = mViewRootImpl.get();
//            if (viewRootImpl != null && viewRootImpl.mView != null) {
//                viewRootImpl.getAccessibilityInteractionController()
//                    .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId,
//                            interactiveRegion, interactionId, callback, flags, interrogatingPid,
//                            interrogatingTid, spec);
//            } else {
//                // We cannot make the call and notify the caller so it does not wait.
//                try {
//                    callback.setFindAccessibilityNodeInfosResult(null, interactionId);
//                } catch (RemoteException re) {
//                    /* best effort - ignore */
//                }
//            }
//        }
//
//        @Override
//        public void performAccessibilityAction(long accessibilityNodeId, int action,
//                Bundle arguments, int interactionId,
//                IAccessibilityInteractionConnectionCallback callback, int flags,
//                int interrogatingPid, long interrogatingTid) {
//            ViewRootImpl viewRootImpl = mViewRootImpl.get();
//            if (viewRootImpl != null && viewRootImpl.mView != null) {
//                viewRootImpl.getAccessibilityInteractionController()
//                    .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments,
//                            interactionId, callback, flags, interrogatingPid, interrogatingTid);
//            } else {
//                // We cannot make the call and notify the caller so it does not wait.
//                try {
//                    callback.setPerformAccessibilityActionResult(false, interactionId);
//                } catch (RemoteException re) {
//                    /* best effort - ignore */
//                }
//            }
//        }
//
//        @Override
//        public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId,
//                String viewId, Region interactiveRegion, int interactionId,
//                IAccessibilityInteractionConnectionCallback callback, int flags,
//                int interrogatingPid, long interrogatingTid, MagnificationSpec spec) {
//            ViewRootImpl viewRootImpl = mViewRootImpl.get();
//            if (viewRootImpl != null && viewRootImpl.mView != null) {
//                viewRootImpl.getAccessibilityInteractionController()
//                    .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId,
//                            viewId, interactiveRegion, interactionId, callback, flags,
//                            interrogatingPid, interrogatingTid, spec);
//            } else {
//                // We cannot make the call and notify the caller so it does not wait.
//                try {
//                    callback.setFindAccessibilityNodeInfoResult(null, interactionId);
//                } catch (RemoteException re) {
//                    /* best effort - ignore */
//                }
//            }
//        }
//
//        @Override
//        public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text,
//                Region interactiveRegion, int interactionId,
//                IAccessibilityInteractionConnectionCallback callback, int flags,
//                int interrogatingPid, long interrogatingTid, MagnificationSpec spec) {
//            ViewRootImpl viewRootImpl = mViewRootImpl.get();
//            if (viewRootImpl != null && viewRootImpl.mView != null) {
//                viewRootImpl.getAccessibilityInteractionController()
//                    .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text,
//                            interactiveRegion, interactionId, callback, flags, interrogatingPid,
//                            interrogatingTid, spec);
//            } else {
//                // We cannot make the call and notify the caller so it does not wait.
//                try {
//                    callback.setFindAccessibilityNodeInfosResult(null, interactionId);
//                } catch (RemoteException re) {
//                    /* best effort - ignore */
//                }
//            }
//        }
//
//        @Override
//        public void findFocus(long accessibilityNodeId, int focusType, Region interactiveRegion,
//                int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags,
//                int interrogatingPid, long interrogatingTid, MagnificationSpec spec) {
//            ViewRootImpl viewRootImpl = mViewRootImpl.get();
//            if (viewRootImpl != null && viewRootImpl.mView != null) {
//                viewRootImpl.getAccessibilityInteractionController()
//                    .findFocusClientThread(accessibilityNodeId, focusType, interactiveRegion,
//                            interactionId, callback, flags, interrogatingPid, interrogatingTid,
//                            spec);
//            } else {
//                // We cannot make the call and notify the caller so it does not wait.
//                try {
//                    callback.setFindAccessibilityNodeInfoResult(null, interactionId);
//                } catch (RemoteException re) {
//                    /* best effort - ignore */
//                }
//            }
//        }
//
//        @Override
//        public void focusSearch(long accessibilityNodeId, int direction, Region interactiveRegion,
//                int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags,
//                int interrogatingPid, long interrogatingTid, MagnificationSpec spec) {
//            ViewRootImpl viewRootImpl = mViewRootImpl.get();
//            if (viewRootImpl != null && viewRootImpl.mView != null) {
//                viewRootImpl.getAccessibilityInteractionController()
//                    .focusSearchClientThread(accessibilityNodeId, direction, interactiveRegion,
//                            interactionId, callback, flags, interrogatingPid, interrogatingTid,
//                            spec);
//            } else {
//                // We cannot make the call and notify the caller so it does not wait.
//                try {
//                    callback.setFindAccessibilityNodeInfoResult(null, interactionId);
//                } catch (RemoteException re) {
//                    /* best effort - ignore */
//                }
//            }
//        }
//    }
//
//    private class SendWindowContentChangedAccessibilityEvent implements Runnable {
//        private int mChangeTypes = 0;
//
//        public View mSource;
//        public long mLastEventTimeMillis;
//
//        @Override
//        public void run() {
//            // The accessibility may be turned off while we were waiting so check again.
//            if (AccessibilityManager.getInstance(mContext).isEnabled()) {
//                mLastEventTimeMillis = SystemClock.uptimeMillis();
//                AccessibilityEvent event = AccessibilityEvent.obtain();
//                event.setEventType(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED);
//                event.setContentChangeTypes(mChangeTypes);
//                mSource.sendAccessibilityEventUnchecked(event);
//            } else {
//                mLastEventTimeMillis = 0;
//            }
//            // In any case reset to initial state.
//            mSource.resetSubtreeAccessibilityStateChanged();
//            mSource = null;
//            mChangeTypes = 0;
//        }
//
//        public void runOrPost(View source, int changeType) {
//            if (mSource != null) {
//                // If there is no common predecessor, then mSource points to
//                // a removed view, hence in this case always prefer the source.
//                View predecessor = getCommonPredecessor(mSource, source);
//                mSource = (predecessor != null) ? predecessor : source;
//                mChangeTypes |= changeType;
//                return;
//            }
//            mSource = source;
//            mChangeTypes = changeType;
//            final long timeSinceLastMillis = SystemClock.uptimeMillis() - mLastEventTimeMillis;
//            final long minEventIntevalMillis =
//                    ViewConfiguration.getSendRecurringAccessibilityEventsInterval();
//            if (timeSinceLastMillis >= minEventIntevalMillis) {
//                mSource.removeCallbacks(this);
//                run();
//            } else {
//                mSource.postDelayed(this, minEventIntevalMillis - timeSinceLastMillis);
//            }
//        }
//    }
//}
